The important issue is not how much inequality there is but how much opportunity there is for individuals to get out of the bottom classes and into the top. If there is enough movement upward, people will accept the efficiency of the markets. If you have opportunity, there is a great tolerance for inequality. That has been the saving grace of the American system.
Milton FriedmanMoney is a very powerful thing, which you hardly notice when it goes right, but which can create havoc when it goes wrong.
Milton Friedman