People need to realize that the modern church is functionally a cult. It primarily exists to trick millions of people into giving them money. The church itself gets fabulously wealthy while nearly all of its followers get nothing.
Think about it: how else are they affording Super Bowl ads? And more importantly, how is it that they think of buying ads instead of giving to the poor directly? It's basically the same idea as Scientology, except it is old enough that we accept it as normal.