We are all capitalists now. For the first time in human history, the world is dominated by one economic system. At some level capitalism has triumphed because it works: it delivers prosperity and gratifies our desire for autonomy. But this comes at a moral price, pushing us to treat material success as the ultimate goal, and offers no guarantee of stability. While Western liberal capitalism creaks under the strains of inequality and excess, some are flaunting the virtues of political capitalism,...