Pushing back against management hard is evidence that you're not working to the benefit of the company and should be fired.
OK. So all Boeing's board of directors would have to do is to mandate that middle and lower management implement real quality improvement measures. Any resistance would be "pushing back". Resulting in the termination of those managers.
Yeah, right. You don't understand how Boeing or any other companies internal politics work. Middle management would just band together to resist change and protect their peers. And production would effectively shut down.
It takes years or even decades to turn company cultures around. Or a Chapter 7 bankrupcy, followed by a buy-out by a more enlightened company. Even then, they would have to go through and find all the cockroaches left behind, hiding under pallets.