Pournelle's law of bureaucracy. Any sufficiently large organization will have two kinds of people: those devoted to the org's goals, and those devoted to the bureaucracy itself, and if you don't stop it the second group will take control to the point that bureaucracy itself becomes the goal secondary to all others.
Self preservation takes over at that point, and the bureaucratic org starts prioritizing its own survival over anything else. Product works instead becomes defensive operations, decision making slows, and innovation starts being perceived as a risk instead of a benefit.