If the SEC or DoJ can't figure out who's done something wrong, they should probably refrain from any prosecution. I am not sure what the 'point of the fine' is,

If the SEC or DoJ can't figure out who's done something wrong, they should probably refrain from any prosecution. I am not sure what the 'point of the fine' is, but it seems like most companies just treat it as a cost of doing business, that they pay before moving on with whatever they were doing. If you think it's difficult to figure out who did what wrong, and that the companies are just scapegoating people, then the SEC implementing fines that cause the company to fire people is likely causing unjust firings.