When banks loan for the long-term benefit of millions of workers and businesses they perform a necessary function.
When they loan for short-term speculation and asset-inflation, they destroy the productive economy.
What Good Is Wall Street?
"Just like power utilities, the big banks have a commanding position in the market, which they can use for the benefit of their customers and the economy at large.
"But when banks seek to exploit their position and make a quick killing, they can cause enormous damage."