Oh, I don't know. It is a pernicious weed with very deep and ancient roots. To wit...
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A Jewish man was traveling from Jerusalem to Jericho. The road is lonely, desolate and rocky - bandit country. The man was attacked, beaten up and stripped of his clothes. The bandits took his money and left him half dead beside the road.
By chance a Priest came along and saw the man lying there. He crossed over to the other side of the road, and quickly walked on by.
A bit later, a temple assistant also came along the road. He looked at the bruised and bleeding man, but he didn't stop to help either.
A Priest and a temple assistant - freshly come from worshipping God - and neither of them had stopped to help their fellow Jew? Well, there were bandits around - it would be dangerous to stop and help. They really didn't want to get involved....