Wall Street has come to rely not on interest from loans for its profits but on short-term trading, at the expense of almost everything else.
The damage done in the name of capitalism and meritocracy to our current economic circumstances can be traced to the wealth-making wizardry of Wall Street on steroids.
Imagine methamphetamines as a model for playing the stock market and you have a clue to understanding where it all went wrong — except for the 1/10th of 1% for whom it went very well indeed.
Add to that an idolatrous devotion, especially among the very rich, to tax cuts at any cost and one begins to understand why most Americans are poorer now than they were 40 years ago — and increasingly unhappy about it. Read about it here