User blog comment:MegamanZero0002/TD Antagonists and "Karma"/@comment-24152851-20140610072940

Well for one the karma is often funny, it's in a sense a running gag. And it gives some viewers satisfaction that a hated antagonist got their repentance, after they had dispatched of so many of their favourites, and the writers might suspect potential backlash after a loved character leaves too early (yes I'm talking about Scott getting rid of Dawn).

And if you think the whole thing's too unrealistic, might I remind you. Real life survivor contestant Russell Hantz received karma. After two whole seasons of being an absolute prick, everyone ganged up on him in the third season and sent him to Redemption Island like at the second challenge.