Listen carefully to people in the political system who complain about the uneven distribution of wealth. They are generally very careful to say that they have no problem with capitalism itself.
Psychology professor John Ehrenreich takes issue with the KIND of capitalism currently in vogue.
A system in which some people make piles of money but wages stagnate for the middle and bottom of the wage ladder get their own term: Third Wave Capitalism.
That is also the title of Ehrenreich's book; he visits to talk about the ways in which this wave differs from the earlier two.