So your argument to the valid narrative of gross unfairness and people being above the law is to look the other way because you are afraid of being called a "socialist"? Holding criminals accountable for bad and reckless behavior is not socialism by any definition of the word.
It's not my solution, I'm not in charge of the SEC! I'm broadly supportive of anti-inequality measures against the financial industry. It's just that if you say that the peanut gallery will call it socialist.
I would however like people to be a bit more specific about what they think the crime was, who specifically committed what, and whether it was actually illegal at the time. It's a word people love to throw around. It's not actually illegal to make poor business decisions.
https://en.wikipedia.org/wiki/Se%C3%A1n_Quinn for example, while his misconduct cost the collapse of AIB, the thing he was actually jailed for was failing to comply with court orders.