Each main Legend of Korra villain represents a different political ideology.
Even the more minor villains like Varrick (who is not always necessarily a villain) and the Earth Queen represent ideologies as well: Capitalism and Monarchy, respectively.
You rise with the moon, I rise with the sun.
a short summary of my life
me introducing myself on the first day of school:
The blood of the First Men still flows in the veins of the Starks, and we hold to the belief that the man who passes the sentence should swing the sword. If you would take a man’s life, you owe it to him to look into his eyes and hear his final words. And if you cannot bear to do that, then perhaps the man does not deserve to die.