'It is not from the benevolence of the butcher, the brewer, or the baker that we expect our dinner, but from their regard to their own interest.'

" A dam Smith’s most famous sentence remains one of the clearest statements in all of social science: "'It is not from the benevolence of the butcher, the brewer, or the baker that we expect our dinner, but from their regard to their own interest.' "The point is simple and profound. We do not rely on the kindness of strangers to put food on the table. We rely on their self-interest. "The butcher…