SInce you like Star Trek, what do you think about Rightful Heir from TNG? It's one of my favorites for how it deals with a mythologized past history, faith, the use of said past to inspire a country, and modern political scheming
It’s an awesome episode. Love in the end where it turns out Kahless is a clone and a fake. But in the end the man is not important, the ideals inspired by the man are what really matter.