This is the Kamala Principle.
In the Peter Principle, one rises to level of incompetence, and stagnates there.
In the kamala Principle (which governs much of government), the less competent you are, the higher you rise. There is no stagnation for the incompetent or belligerent or malignant. Those qualities carry high value in the institutions of government.
Kinda like a cesspool ... biggest pieces float to the top ...