Because they've made her into the center of their advertising campaign for casino, a walking talking mascot. If you were a gambler, and there was one casino that was a regular casino and one with a person wandering around with magical luck-manipulating powers that makes customers win... which casino would you go to?haha, the stupid! okay, so it's bad; but it's not BAD, if you see what I mean. Though why any casino would employ a croupier (not dealer, show!) who makes people win, I've not idea.
Er, which is appropriate because the "real" Rio the show is based on is an advertising campaign cartoon.