This is literally what happens every time you let business self-regulate. Boeing should be done for murder.
Currently a class action from the victims families, the shareholders and pilots are under way, this is better hurt them enough. (I assume airlines are getting sweetener deals instead to persuade them away from their own suits)
I agree (with the done for murder bit) but can't you see that what you are describing is exactly why this sort of thing doesn't happen almost at all?
The punishment received by any company caught not doing the minimum standards, both financial and potential prison time.