The Many Schools of Thought on Corporate Sustainability

As I progressed through the NPTEL course on Business Ethics, I found myself increasingly drawn to a deeper question: how should we understand corporate sustainability through the lens of different schools of thought? Beneath the surface of any “sustainability strategy” lie radically different motivations, philosophies, and frameworks. These are not merely stylistic variations; they reflect fundamentally distinct intellectual traditions, each shaped by its own assumptions, heritage, and leading thinkers.

Understanding these schools matters because the lens a company adopts shapes what it measures, what it prioritises, and ultimately what it changes. Below is a comprehensive mapping of the major intellectual traditions that frame how corporations think about sustainability today.

01 The Ethics School

Rooted in moral philosophy, the ethics school holds that corporations have inherent duties to act rightly, independent of profit consequences. Drawing on Kantian deontology and virtue ethics, this tradition argues that businesses are not merely economic machines but moral agents embedded in society. R. Edward Freeman’s landmark 1984 work Strategic Management: A Stakeholder Approach laid the groundwork by arguing that corporations owe obligations to employees, communities, and the natural environment, not just shareholders [1].

02 The Responsibility School

The Responsibility School traces to Howard Bowen’s 1953 book Social Responsibilities of the Businessman, considered the founding text of CSR literature [2]. Archie Carroll later refined the concept into his famous “Pyramid of CSR” (1991), which layered economic, legal, ethical, and philanthropic responsibilities in ascending order of aspiration [3].

The responsibility school frames sustainability through obligation – what society expects from corporations in exchange for their licence to operate. It gave rise to corporate volunteering programmes, community investment funds. Critics, including Milton Friedman in his famous 1970 essay, argued that CSR distracts from business’s sole purpose of generating shareholder returns [4].This tension remains very much alive in contemporary boardrooms.

This school of thought was instrumental in the evolution of Section 135 of the Companies Act in India.

03 The Impact School

Porter and Kramer’s 2011 Harvard Business Review article introducing “Creating Shared Value” (CSV) crystallised what we might call the impact school, the belief that business can and should generate measurable social and environmental value as a core business activity, not an add-on [5].Rather than asking “what harm can we mitigate?” this school asks “what good can we create?”

Impact-oriented companies design products and business models around solving social problems profitably. Firms like Danone, Interface, and Patagonia have become standard bearers. The B Corporation movement, launched in 2006 by B Lab, institutionalised this approach by legally requiring businesses to consider impact alongside profit [6].

04 The Systems School

The systems school, heavily influenced by ecology, argues that corporations are embedded within and utterly dependent on living natural and social systems. Donella Meadows’ seminal Thinking in Systems (2008) [7] and the Natural Step Framework developed by Karl-Henrik Robèrt in the 1980s [8] both insist that sustainability requires working within planetary boundaries, not simply minimising harm at the margins.

I would say John Elkington’s “Triple Bottom Line” framework (1994) emerged from this tradition [9].Importantly, Elkington himself recalled the concept in a 2018 essay, arguing it had been reduced to an accounting exercise rather than the systemic transformation he intended. The systems school demands that companies redesign operations in harmony with ecological limits, not just report on them.

05 The Institutional School

Institutional theorists argue that corporate behaviour is shaped less by moral conviction than by normative pressures from governments, industry peers, investors, and civil society. DiMaggio and Powell’s concept of “isomorphism”, which is the tendency of organisations to come to resemble one another under social pressure, explains why sustainability reporting exploded after the Global Reporting Initiative (GRI) launched in 1997 [10].

Under this lens, sustainability adoption is often driven by legitimacy rather than genuine commitment. Greenwashing is an institutional phenomenon: companies signal sustainability even when substantive change is absent. The institutional school is therefore also a critical school, offering tools to distinguish genuine transformation from performative compliance.

06 The Strategic School

The strategic school takes a pragmatic view: sustainability is a source of competitive advantage. Stuart Hart and C.K. Prahalad’s “Bottom of the Pyramid” thesis argued that serving the world’s poorest four billion people with affordable, sustainable products represents the largest untapped business opportunity in history [11].Hart’s “Natural Resource-Based View” of the firm (1995) further argued that environmental capability is a genuine strategic asset, not a cost centre.

This school is deeply influential in management consulting and business schools. It makes sustainability palatable to skeptical executives by framing it in the language of differentiation, risk management, and long-run value creation. Investors, particularly those applying ESG screens, have become powerful allies of this school.

07 The Justice and Equity School

The justice school challenges mainstream corporate sustainability for focusing on efficiency and reputation while leaving structural inequalities intact. Robert Bullard’s pioneering work on environmental justice revealed that pollution and ecological degradation are not evenly distributed and they disproportionately harm low-income communities and communities of colour [12].Joan Martinez-Alier’s concept of “ecological debt” extends this globally [13]: wealthy nations and corporations have historically extracted resources from the Global South without fair compensation.

Vandana Shiva’s critiques of industrial agriculture and biopiracy further shaped this tradition. For justice school theorists, sustainability without equity is incomplete at best and hypocritical at worst. This school has gained significant influence in international climate negotiations and the growing movement for “just transition” policies.

∞ What does this mean?

This diversity of thoughts is not a weakness; it reflects the multi-dimensional nature of what it means to operate responsibly in the 21st century. A company that only speaks the language of the strategic school risks reducing sustainability to a marketing exercise. One that applies only the systems lens may struggle to communicate with investors. The most durable sustainability transformations tend to weave together ethical conviction, systemic understanding, and strategic coherence.

References

1. Freeman, R.E. (1984). Strategic Management: A Stakeholder Approach. Pitman Publishing, Boston.
2. Bowen, H.R. (1953). Social Responsibilities of the Businessman. Harper & Row, New York.
3. Carroll, A.B. (1991). ‘The Pyramid of Corporate Social Responsibility: Toward the Moral Management of Organizational Stakeholders.’ Business Horizons, 34(4), pp.39–48.
4. Friedman, M. (1970). ‘The Social Responsibility of Business is to Increase its Profits.’ The New York Times Magazine, 13 September 1970.
5. Porter, M.E. & Kramer, M.R. (2011). ‘Creating Shared Value.’ Harvard Business Review, 89(1/2), pp.62–77.
6. B Lab (2006). B Corporation Certification Overview. Available at: https://www.bcorporation.net [Accessed May 2026].
7. Meadows, D. (2008). Thinking in Systems: A Primer. Chelsea Green Publishing, Vermont.
8. Robèrt, K.H. (1991). ‘From the Big Bang to Sustainable Societies.’ ReVision, 13(4), pp.153–164. [First peer-reviewed publication of The Natural Step Framework, founded in Sweden, 1989.]
9. Elkington, J. (1994). ‘Towards the Sustainable Corporation: Win-Win-Win Business Strategies for Sustainable Development.’ California Management Review, 36(2), pp.90–100.
10. DiMaggio, P.J. & Powell, W.W. (1983). ‘The Iron Cage Revisited: Institutional Isomorphism and Collective Rationality in Organizations.’ American Sociological Review, 48(2), pp.147–160.
11. Prahalad, C.K. & Hart, S. (2002). ‘The Fortune at the Bottom of the Pyramid.’ Strategy+Business, 26, pp.54–67.
12. Bullard, R.D. (1990). Dumping in Dixie: Race, Class, and Environmental Quality. Westview Press, Boulder.
13. Martinez-Alier, J. (2002). The Environmentalism of the Poor: A Study of Ecological Conflicts and Valuation. Edward Elgar Publishing, Cheltenham.