If you live in the United States, you are familiar with "trickle-down" economics. Republicans have favored this approach at least since Reagan. Tax cuts for the wealthy are supposed to be good for the rest of us. They are the "job creators," after all. More money for them means more job opportunities for us and a better economy for all.
What happens when wealth doesn't trickle down? The solution is always to elect more Republicans. We do because we are desperate to believe the myth. The sunk-cost fallacy kicks in, and we can't cut our losses now. More Republicans it is!