So you're assuming that every high noble is a cynical, duplicitous, atheist that only uses religion as a means of social domination of the proletariat?
In a way, yes. I mean: look at the Pope. Look at Medieval monasteries where nobles' kids just had a playground away from society. "Ora et labora", yeah right. I am sure the Catholic Church has a basis of faith, but that basis lies not at the top.
In-game that would be: yes some nobles show true zeal and faith, but face it: most of them joined a religion to gain influence, not to spread the truth.
IR: Prophets don't prophetise the truth, they spread their influence. Or they became a prophet involuntarily (~Jesus)
