The US justice system and regulatory agencies treat corporations with kid gloves. They often get many strongly worded letters and many chances to correct their bad behavior before regulatory action happens, and then when it does happen, it's slow and the corporation usually continues to operate, and then when penalty comes, it's some ridiculously small fraction of the gains that came from the bad behavior, which the corporation usually appeals and gets reduced or thrown out.

There are almost never company-killing fines. There are almost never consent decrees with stipulations that change the company's behavior. There are almost never instances of piercing the corporate veil and going after executives or shareholders. It's a total joke.