Cynicism like that makes me sad. Cynicism is one of those weird attitudes that totally justifies itself. It is the psychological interior of the "defect/defect" Nash equilibrium. It's saying "Oh yeah, all politicians are liars, all charity is a scam," which tends to produce a world where all politicians are liars, and all charities are scams. When an exception occurs, the cynic says, "Yeah, that honest politician is going to get eaten alive by the liars; those selfless charities are going to go bad someday, out competed by the transactional ones." And everyone who believes this makes it more likely that it is so.
But spirituality is quite real, and there are those who really believe in selfless giving without expectation of anything in return. Lots of people. They exist in the "cooperate/cooperate" equilibrium, and honestly, it's better there. It's not that you don't see the cheating, the greed, especially in the name of charity, its just that you're choosing to do something different, something that feels more wholesome. (I say this as someone who's served a bunch of meditation courses, and really enjoyed it.)