I think it’s just playing into people’s fantasies of power. Look at how much of.our entertainment is about ultra wealthy people (the romcom billionaire who falls for a humble working class woman, the rappers who brag about getting bags, etc.) despite most Americans living humbly or struggling. It may also be because most people in the US grew up on fairy tales and Disney movies involving royalty (ETA: Now that i think about it these children’s entertainments sound like propaganda).