Those went bankrupt. They didnt go out of business as punishment for wrong doing.

Fines so large that they lead to bankruptcy is how the death penalty works for businesses.

I think the opposite is more common: the government steps in to save a company that would otherwise be forced out of business due to the harm they caused others.

See for example tobacco and asbestos companies.

And did Enron really die if all their assets were sold to competitors and continue to operate?