It's not a myth. It's a fact. The whole point of any for-profit company is to generate a return for the company's owners. Companies which fail to do so go out of business. It has always been thus.
As for the notion that Boeing has prioritized shareholder value over safety: just look at their share price over the last few days. It tanked by 10% since this accident occurred. Clearly, making safe planes is a prerequisite for generating shareholder value. There is no conflict there.
As for the notion that Boeing has prioritized shareholder value over safety: just look at their share price over the last few days. It tanked by 10% since this accident occurred. Clearly, making safe planes is a prerequisite for generating shareholder value. There is no conflict there.