I don't know that it's necessarily incompetence. The idea of "overproduction of elites" pops up frequently:
https://www.niskanencenter.org/are-we-overproducing-elites-a...
You may be supremely competent but unlucky enough to be born at the wrong time, to the wrong family, competing with the wrong people, to rise to the level that you feel you deserve.
I look at this re-occurring overproduction of elites concept, and feel like it has good points but seems to be welded like a weapon, soon followed by statements like "you're just unlucky, get over it."