Poor lending standards and verification practices.
Financial institutions buying and selling complicated derivatives they should have understood but didn't.
Relying on ratings agencies to do a good job, when they didn't.
Relying on insurance that wasn't appropriately priced or capitalized to cover the risk.
There was some outright fraud in loan applications and foreclosures, which was prosecuted when there was sufficient evidence.
All of these stupid decisions and the resulting easy money distorted the housing market, and the results when it fell apart were painful, but bank execs don't have a legal duty to not engage in stupid endaevors or maintain the stability of our markets. On the other hand, officers of a public company do have a legal duty not to knowingly distribute misleading information about their company in order to manipulate the stock price.
He's African isn't he?
Although why entrepreneurship needs a continental characteristic adding to it I'm not sure.
Perhaps you just meant "against entrepreneurship and innovative spirit in USA"?