i'm not sure why expanding temples can't be done with global treasury.. sure... it would mean priests or whoever don't have to carry a load of gold from 1 side (rich followers) of the continent to another (poor, just starting up) to build it up.
for that matter, why not have the "deposit tax" go into global treasury as opposed to the lord.
or remove "banking" altogether for non-priests.. but donation or paying your balance can give you certain benefits. raise troop morale, for example.
