The fines for wrongdoing are so tiny the incentives are to always do bad stuff and just pay the fines - that’s how to maximize profit and there’s no downside.
FWIW I think the "money is speech" is actually a bit of a distraction. What we really need is wholesale reform to corporate/LLC law. Corpos are not mere groups of people exercising their individual rights, but government-created liability shields. Thus it makes perfect sense to regulate them to prevent obvious mechanisms of harm that leave others holding the bag. The vaunted "man in the arena" needing minimal regulation can actually get into that arena with a sole proprietorship or general partnership. (which is exactly where most small businesses actually are, regardless of any LLC filings)