Critiques of capitalism come in two varieties. First, there is the moral or spiritual critique. This critique rejects Homo economicus as the organizing heuristic of human affairs. Human beings, it says, need more than material things to prosper. Calculating power is only a small part of what makes us who we are. Moral and spiritual relationships are first-order concerns. Material fixes such as a universal basic income will make no difference to societies in which the basic relationships are felt to be unjust.

Then there is the material critique of capitalism. The economists who lead discussions of inequality now are its leading exponents. Homo economicus is the right starting point for social thought. We are poor calculators and single-minded, failing to see our advantage in the rational distribution of prosperity across societies. Hence inequality, the wages of ungoverned growth. But we are calculators all the same, and what we need above all is material plenty, thus the focus on the redress of material inequality. From good material outcomes, the rest follows.

The first kind of argument for capitalism’s reform seems recessive now. The material critique predominates. Ideas emerge in numbers and figures. Talk of non-material values in political economy is muted. The Christians and Marxists who once made the moral critique of capitalism their own are marginal. Utilitarianism grows ubiquitous and compulsory.

But then there is Amartya Sen.

Every major work on material inequality in the 21st century owes a debt to Sen. But his own writings treat material inequality as though the moral frameworks and social relationships that mediate economic exchanges matter. Famine is the nadir of material deprivation. But it seldom occurs–Sen argues–for lack of food. To understand why a people goes hungry, look not for catastrophic crop failure; look rather for malfunctions of the moral economy that moderates competing demands upon a scarce commodity. Material inequality of the most egregious kind is the problem here. But piecemeal modifications to the machinery of production and distribution will not solve it. The relationships between different members of the economy must be put right. Only then will there be enough to go around.

In Sen’s work, the two critiques of capitalism cooperate. We move from moral concerns to material outcomes and back again with no sense of a threshold separating the two. Sen disentangles moral and material issues without favoring one or the other, keeping both in focus. The separation between the two critiques of capitalism is real, but transcending the divide is possible, and not only at some esoteric remove. Sen’s is a singular mind, but his work has a widespread following, not least in provinces of modern life where the predominance of utilitarian thinking is most pronounced. In economics curricula and in the schools of public policy, in internationalist secretariats and in humanitarian NGOs, there too Sen has created a niche for thinking that crosses boundaries otherwise rigidly observed.

This was no feat of lonely genius or freakish charisma. It was an effort of ordinary human innovation, putting old ideas together in new combinations to tackle emerging problems. Formal training in economics, mathematics and moral philosophy supplied the tools Sen has used to construct his critical system. But the influence of Rabindranath Tagore sensitized Sen to the subtle interrelation between our moral lives and our material needs. And a profound historical sensibility has enabled him to see the sharp separation of the two domains as transient.