Schadenfreude.........................

Taking credit for a win lifts our personal narrative.  So too does knocking down a peer by finding them at fault for a loss.  That's schadenfreude:  deriving pleasure from someone else's misfortune.  Schadenfreude is basically the opposite of compassion.
     Ideally, our happiness would depend on how things turn out for us regardless of how things turn out for anyone else.  Yet, on a fundamental level, fielding someone's bad outcome as their fault feels good to us.  On a fundamental level, fielding someone's good outcome as luck helps our narrative alone.

-Annie Duke:  Thinking In Bets:  Making Smarter Decisions When You Don't Have All the Facts