Keep in mind that we don't know ANYTHING about Cadance. She may be a thousand years old (she just aged differently than Twilight because she was already an alicorn, meaning, more slowly), and may be a survivor of the curse that King Sombra cast on the Crystal Empire. That would explain why did the crystal ponies call her the Crystal Princess and why her cutie mark shows the Crystal Heart. What hurts this theory is that Meghan said that Twilight will not outlive her friends, meaning that alicorns do not necessarily age very slowly or are immortals. .............................. Or we will have five more alicorns soon.
The name, "Crystal Empire", just boggles my mind. So, they were worried with "Queen Celestia" but ok with "Crystal Empire"? Maybe the name is what it is because King Sombra made it so, but then, why isn't he EMPEROR Sombra?! Honestly, I don't think they even gave it any thought.
Anyway, I guess that the Crystal Empire (based on it's name) could have been a different country. Celestia and Luna just took action to take down Sombra because he was being a tyrannical jerk to the crystal ponies, and not because he was a local governor under the Princesses that stepped out of line. So, even if they rule their own country, they took upon themselves to bring justice to the ruler of another country? Was Sombra manufacturing the Pink Cloud?! Sorry, couldn't resist.
This brings me to what the princesses really are. I always thought a bit silly the notion of several countries in a world where the rulers of one of this countries control celestial bodies. In our world, when we thought of beings like this, we identified them as deities (not necessarily almighty, all-seeing deities, but with immense powers limited to their "roles" in the world). The finale for season 3 made alicorns look like Buddhas, enlightened beings that surpassed "normal" understanding of magic and the magic of friendship and ascended to a "higher level" (becoming an alicorn) and then serving as an example for other ponies. That, is freaking awesome, IMO.
So the real question is: are alicorns/princesses necessarily political leaders? Or are they simply role models, and Celestia, Luna and Cadace happen to be rulers as well?
Am I making any sense?!
Edited by moonlightavenger, 24 May 2013 - 10:56 AM.