"After a few years on Wall Street it was clear to me: you could make money by gaming anyone and everything. The more clever you were, the more ingenious your ability to exploit a flaw in a law or regulation, the more lauded and celebrated you became. Nobody seemed to be getting called out."
And this is an old article; we know there's been no meaningful corrective since it was written. Read to the end.
https://www.theguardian.com/business/2013/nov/25/wall-street-hard-time-ethical