This is true only if you look narrowly at developed countries. If you look more broadly, a tremendous number of people have had huge increases in income in plac

This is true only if you look narrowly at developed countries. If you look more broadly, a tremendous number of people have had huge increases in income in places like China. That might even be related (i.e., wages for workers are being depressed in developing world as workers see competition from other workers in developing nations). And capital owners benefiting from increased availability of labor. TBC, agree that gini coefficient re: wealth in developing world is increasing.