Quote Originally Posted by Ludens View Post
There are no hidden stats. In fact, it gets worse: some of the bonuses don't work. Loyalty (as opposed to happiness and law) seems to do nothing. Morale may or may not affect units stationed in the city/province, but I understand it doesn't stick to them like armour upgrades do. +1 tax will increase tax-income with a barely noticeable 1%.

Partly, this is due to bugs in the R:TW engine, but the temple system is also an old bit of the mod that never has been redesigned or rebalanced. The temples do have a noticeable effect on your characters' traits & ancillaries. The trait-system is very complex though, so I cannot tell exactly what all temples do. That will depend on your faction and character's primary personality traits. I think it's best just to let role-playing guide you in your choice of temple.
The tax thing seems absurd. But I know they do something similar in Empire and shogun and it works. Simply because they use province income and you get a percentage of that. So plus 1 or 2% is a boost of about 5% or more. Still, its pretty weak there and in this game it is even weaker. I don't understand the temples generally. All I know is, Law is good.