License to Be Bad: How Economics Corrupted Us: Summary & Key Insights

To understand how economics drifted from moral philosophy into a detached science, we must start with its origins. In the eighteenth century, thinkers like Adam Smith and David Hume did not see economics and ethics as separate spheres. For Smith, self-interest was not a celebration of selfishness but an acknowledgment of human motivation within a moral framework. His *Theory of Moral Sentiments* came before *The Wealth of Nations*, and the two were meant to complement one another. Markets, in Smith’s view, functioned best when participants were guided by sympathy and justice.

But as economics matured into a distinct discipline, its practitioners increasingly sought the precision of physics and the prestige of mathematics. The moral language that once guided political economy—words like virtue, duty, and benevolence—gave way to terms like utility, equilibrium, and optimization. Humans became simplified into ‘agents,’ morality into ‘preferences.’ The field's success in predicting and quantifying economic behavior came at a cost: the abandonment of moral nuance.

This shift might have seemed innocent. After all, who could object to making our theories clearer and our models more rigorous? Yet beneath that technical refinement lay a profound change in how we viewed human beings. Economics became less about how we ought to live together and more about how individuals could maximize their outcomes. The seeds of moral distortion were already sown.

By the mid-twentieth century, economics had reimagined human behavior through the lens of rational choice. Homo economicus was born: a being who calculates, optimizes, and pursues self-interest with machine-like consistency. Rational choice theory offered mathematical elegance and predictive clarity—but at the expense of humanity itself.

In this new model, moral sentiments were errors, altruism a strategic choice, generosity a market signal. People weren’t guided by ethics; they were driven by incentives. Economists began to treat moral beliefs as preferences, no different from tastes in food or music. The language of virtue gave way to the language of utility.

The power of rational choice thinking lay not merely in its academic influence but in its psychological allure. It gave us permission to see selfishness as natural, even admirable. It told us that helping others only made sense if it served our interests. This was not just a description of behavior—it was a prescription for how society should be organized.

The ripple effects were vast. From corporate boardrooms to public policy, the logic of rational self-interest became the new moral compass. Inequality could be justified so long as it was ‘efficient.’ Greed was recast as a form of enlightened rationality. The invisible hand, once tempered by moral restraint, became a license to pursue profit without guilt.