I also thought about this yesterday with the flags in your claim and I think its a brilliant idea
,
I don't know why you should SACRIFICE to a monument (Conflicting with many religions), cant they have a maintenance fee or a system where you should keep X amount of wood/stone for "repairs and maintenance upkeep" for your town/claim instead of a sacrifice system??
This game is supposed to be a realistic building/survival game, not a fantasy MMORPG where you can do these things (and there are already millions of those out there).
So developers, please do keep these things in mind when implementing features into the game, if you create a neutral system for all types of people you can surely increase your international sales drastically.