Dracosolon
Emperor
One thing I thought of one time this came up is that one ideology could be like Decolonization/Third-Worldism and disrupt colonial empires, making cities more likely to go independent or trigger a rebirth. This would help make the mod have less huge empires during the endgame.
Another thing is you could have ideological victories to parallel religious victories.
Another thing is you could have ideological victories to parallel religious victories.