My take on this is as follows -
The people at the very top of religious hierarchy, I believe are those who do not believe in religion they're leading. I think this has been true throughout history.
People wonder about strange things in the Bible, but noone wonders WHY there isn't a single bad word about Romans when it came to Jesus being crucified? Hellooooo!
Those who wrote our Bibles and Korans and Torahs were those who cashed in on a really great idea.
They were not believers. They couldn't have been.
And the trend continues today - those at the very top are not as religious as they have us think, while those at the bottom, ie normal people/believers are willing to sacrifice everything for their cause.
It's quite devastating actually.