My brother in law is a full time evangelical preacher with his own church and congregation.
I only see him once every so many years for family weddings/funerals.
He seems like a decent bloke I'd get on with as a friend.

Whatever he earns from the church, he's managed to raise 4 kids
and send 2 so far through university.

I have noticed that the middle aged men in his congregation I've met and converesed with socially at these family occasions,
seem to be quite well off
and ambitious in their businesses and professions...

Is it a religious personality trait that makes them very driven individuals...????

.. and their kids seem to inter-marry with other families within the church...

Some kind of insular godbotherer mafia...?????