Wealth may not be a complete 0-sum game, but for at least a couple decades virtually all the economic gains in the US have gone to the top 10%. So when people are cheering that wealth is (finally) starting to flow from the investor-class to the wage-earning class, it feels disingenuous to me, or at least willfully naive, to blithely argue "why are you rooting for someone else's income to go down?"