@Fountofwisdom,
In the case of the mortgage business the system was bad however the people on the front lines was working inside of a legal if very unwise system that they did not set up. Calling them evil and is a little must. Congress and the other branches of government knew what was going on but the business model was that homes prices would keep increasing and bail evreyone out of a very unwise business model.
The incentive here was to sell as many mortages as possible and there was no need to worry about the ability of the borrowers to repaid. The mortgages would be package into a pool and resold in short order lomg before the **** could hit the fan and with constant raising prices the **** might never reach the old fan in any case.