I was trying to think of simple legal changes that would make America better for everyone.

The first one that comes to mind is: "Set corporate fines for ANYTHING to be minimum 150% of the money they profited from their lawbreaking, as assessed independently by the government".

Get rid of the concept as "fines as a cost of doing business" and turn them into actual deterrents.

This comes from Yet Another "Oopsie' from local chemical plants.

@EmilyGB2023 Add in "every bonus paid to any officer of the corporation or member of the board in the past five years must be repaid in full in cash" and "no bonus in any form can be paid to any responsible person for the next ten years".

Probably can't make the bonuses part of the fine in the US, but other places? Worth a try.