Regulations are indeed an important part of managing our system as it is, but they're fundamentally a bandaid to the problems of capitalism.

You gotta catch the corporations doing a bad thing and then tell them not to do it, meanwhile they're buying politicians to fight against you on it. And it still doesn't stop them from committing actions that are horribly unethical and extremely damaging to our society and to the environment, they just tone it down a bit at best, or occasionally they'll have to put a small fraction of their money into a lawsuit without actually changing their behavior.