Why should public money fix a process that will help Boeing shareholder value?

The executive leadership should lose their own (potential?) personal money over this incident. Until that happens, nothing will get fixed.

We don't know the specific process failure. While I appreciate your anger, it's a bit premature.

It is not sufficient, in itself, to prevent a recurrence, but adjusting the incentives to encourage preventative measures is a time-honored and generally effective way of getting results. It is more effective than shrugging one's shoulders and saying "It's so complicated! It can't be helped..."