Investigations after the Challenger Disaster revealed that engineers at NASA thought the space shuttle had a 1/100 failure rate per mission, while managers thought the shuttle had a 1/10,000 failure rate.
by making unsafe aircraft Boeing was able to avoid losing customers, and in fact make many more sales because airline’s pilots didn’t need to be retrained and their equipment didn’t need to be changed. Combined that made the MAX a more cost effective alternative to the airbus.
That’s your shareholder value, as long as your unsafe aircraft don’t end up crashing.
Also it’s mostly nonsense: executive compensation is often tied up in revenue and market performance, and they’ve mostly cashed out on that before the financial damage caused by their “work”.