Maybe in future earning reports we will see statements like "Legal fines went up 80% YOY from $7B to $12B and we are planning to continue our aggressive spendings in this area to expand our market dominance".
As a person getting caught stealing/defrauding/etc. you would have to pay restitution and additional fines/time in prison. This is how it should work for businesses to. If the goal is to actually prevent future abuse.
A private individual is expected to return all illegal gains, pay additional fines, and possibly do prison.
But a company might be expected to pay fines that are actually a fraction of the profits made abusing the law. This means paying the fine is more lucrative business than ceasing the abusive behavior.
As such the system only gives the appearance that it's working when in reality it's just not bringing the expected benefits. If paying the fine and keep skirting the law is cheaper than fully complying than that's what companies will do.
Easier to say sorry than to ask permission, right?