Actually, it's more parasitism - predation of people's gullibility. Whether subtly by clergy or more openly by Popoff and his breed, if you lack an evidence filter or critical thinking skills, you might just as well sit on a plate and hand yourself to any passing conman.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'