I would suppose it's a combination of corporate politics being very different, more goal driven than in government agencies and the simple fact that SpaceX simp

I would suppose it's a combination of corporate politics being very different, more goal driven than in government agencies and the simple fact that SpaceX simply has a lot more giants on whose shoulders they can stand. Why they are that much more effective at it remains to be seen. I would guess it's being smart with the shoulders you pick to stand on and a good bit of PR.