The "Peter principle" rests on the assumption that organizations are rational meritocracies, and will reward people that are competent at their given task. And those organizations may (still) exist, but they are not the norm, at least not in my experience.<p>I propose another, more important, principle as an explanation for the obvious incompetence of many managers:<p>Competent people are a source of pain to higher levels of management, because they don't just say "yes boss", they will tend to point out the risks of flying blind, offer a better solution than what was recently clubbed at the board of directors meeting, and have ethical guardrails regarding what chemicals to put in the product, how to treat coworkers, etc. They are brilliant at their tasks, but have opinions that go beyond their designated area, they are expensive and demanding. And they usually end up getting the can, with or without a severance pay. And the incompetent, but "yes boss"-employee gets the promotion instead.<p>There you have it.