The profit from any investment has never been taxed in the first place. In any case, the elite have all the money, anyway. Where's the risk in lending 1% or less of your booty?
The richest 10% of this country already control over 98% of the nation's wealth.
http://www.mybudget360.com/dc-and-wall-street-watch-middle-class-burn-wealth-distribution-top-10-percent-control-98-percent-of-financial-securities/
This is what happens when the elite always win. They cut their taxes and everybody else’s wages so that governments and people have no money. If government can't buy/spend and people can’t buy/spend you have no economy. The elites have all the money. They win. Hurrah. Now what?