This goes way beyond Boeing and other OEMs, it affects every organization in the industry. Regulators need to be confident that Boards, accountable and nominated persons (postholders) are "suitably qualified and experienced", yet they often have little influence over the appointment of people who are clearly ill-equipped to do the job. You can coach someone to get through an accountable manager interview but that is not the same as ensuring the individual understands, retains and uses the information.
We can all point to examples of managers applying pressure to short-cut or go beyond boundaries to improve returns to shareholders and by extension to themselves. Those who do this do not normally understand the system in which they are operating, the 2nd and 3rd order consequences of their decisions (such as the effect on safety culture), or even the basic principles of safety management. They are people who only see risk as being real in terms of profit/loss, who assume safety risks will not materialize on their watch, and who happily 'accept' safety risks on behalf of those who will bear the physical consequences of an accident.
It is time we did something about it, starting with requiring executives to demonstrate relevant knowledge. If we can't do that, then we should as a minimum expect some effort to learn the basics.