It’s not trivially verifiable for the average person and the average person is used to the rich just flaunting the law with trivial or no consequences.
Saying “but that would be against the rules!” means almost nothing for the rich. This is one of the downsides of not having a strong rule of law and the rule of law has been degrading steadily in the US
I don't know if you're implying the SEC is in cahoots with the hedge funds, and not just any hedge fund but one associated with SAC/Cohen whom the SEC went to war with. I'm sympathetic to your general point but as someone who has spent his whole career in the financial markets that seems vanishingly unlikely to be the case here.
He got what, banned from supervising a hedge fund for 2 years for insider trading? If the punishment he received from the SEC constitutes "war" in the financial markets then I don't think you understand the viewpoint that sees the the SEC as handing out trivial punishments.
There is a big difference between handing out light punishments and actively colluding. In the case of Cohen, his light punishment is because they were never able to find the smoking-gun evidence they needed to put him away properly on criminal charges despite a massive effort to do so so they settled for what they could get. It's not enough to be guilty (hi OJ), and Cohen was guilty as sin I don't doubt it.