As someone proposed on here, instead of fines, punishment should be a percentage government ownership stake. This serves to 1. dilute the shares, punishing the people who can affect change (the shareholders) and 2. Put the government on the inside, a major pain in the ass and a stronger position for the government to know when, prevent, and/or punish these things in the future.

An irredeemable company/ownership will ultimately lose control over time.