Ok. "Morons" is harsh. Many of these morons are our parents, grandparents, wives, friends and co-workers who for the most part seem like or are at least fairly intelligent, good people. Misguided and brainwashed would possibly more accurate.
Growing up we all want to be accepted by everyone and many at a very early age in life choose to do that by going with the grain, following the leader.
If they see no reason why they shouldn't believe than I imagine that (along with their young age) would contribute to the brainwashing.
I admit, I've been guilty of calling them morons as well.