Well, we can safely assume that the region is America, I think, though that's obviously not proven. While other religions such as Islam and Hinduism are hardly dominant in that country, Christianity tends to be the majority religion pretty much everywhere. Yet, we fail to see a single bill in the Christianity bowl, and what look to be multiple bills as well as more coins in the atheist and agnostic bowls. So while you can't draw general conclusions about every religion, it's safe to say that since atheism and agnosticism have, we're assuming, less adherents in the area than Christianity, yet clearly more donations, all Christians are selfish misers.
Yes.