It's amazing how long such people can avoid facing those long-term consequences, while benefiting from the powerful ego-defense of being "often wrong, never in doubt."
There are only consequences if someone makes there be consequences.
And, as a species, we're generally quite bad at letting the worst among us not just roam free, but rise to the very top.
Edit: Chun Doo Hwan, not Park Chung Hee, getting my dictators mixed up, sorry.