Karma Houdini

Karma Houdini's are people who constantly commit wrongdoings and somehow get away with no comeuppance or karma. They are the polar opposite of Butt-Monkeys. No matter how bad they do, or how much they deserve it, karma just seems to forget about them and instead punish the innocent butt-monkeys.

Overall Reason Why This Trope Sucks
Basically, this trope serves as hateful character development, where characters you hate or despise get off scot-free from anything they caused and actually deserve their comeuppance more than the butt-monkeys.

The Only Redeeming Quality
Sometimes, as what it said above, Karma Houdinis do at least get their comeuppances for excessively being mean-spirited towards other characters. Tokkori, Bufo and The Mayor are examples of this.