Just to point out as well, things like Frost giants, Ettins, Cyclops, etc have a chance of dropping like 40 prestige and 200+gp already anyways.

I like this idea.

Just some feedback from a player side perspective however. It is very important to incentivize a good reason to give to a faction other than to buy a piece of loot. If you look at the data, I'm willing to bet that the people's palace has the vast majority of prestige given. Because Bag's of holding are the bees knees, you can use more than one because it's not an equipment slot, and the best bag costs 1k prestige to get.

This is a cool idea, but if one faction has clearly better perks than others, everyone will just funnel their prestige into the same one again.

(I can pop in to see what's going on~)