Companies serving the military and companies serving the population at large should generally be separated. Boeing's fall (thanks to the reverse McDonell Douglas takeover) was mostly as their defense arm grew. Huge margins, a very different type of working. Boeing stopped giving a damn about it's civil aviation business, as is exemplified by moving their HQ from civil manufacturing hub Seattle first to Chicago and now to Arlington County, Virginia literally to suck up to Washington and lobby 24/7.

That's a very different type of business.

If Boeing was forced to make money with a successful civil aviation business alone it would be run very very differently.