>His setting actually has feudal monarchies where the nobility holds most of the power
You have 10 seconds to explain yourself, collaborator.
Nobles have magic powers. Careful noble interbreeding are needed too keep magic bloodlines pure. In the rare case a commoner is born with magic, he is instantly absorbed into a noble house.
Because the Mittenfolk, despite their hatred for them, emulate their original Elven Enslavers in their government because it's the only system they know. And the Courts of the Spirits are structured as such, so why shouldn't the Men of Salt that are descended from them?
[Popular sovereignity intensifies]
How will I have romanticized princes and princesses otherwise?