If Putin was that stupid, he'd already have been ousted.
Do it enough times, and you end up with yes men that also force other people into the meat grinder well enough you don’t have to care, directly.
It’s a type of genius. It works best when you embrace that everyone wants to suck up to you anyway, and there are always more flunkies where they came from, so you’re really helping the world out by filtering down to the somewhat effective ones ASAP.