Sauron was not a politician, he was never elected.

"- I am your king! - Well, I didn't vote for you."

You don't have to be elected to be a politician.

Bloody peasant.

The One Ring maybe, but still I'd rather see more elves with rings then men.

It's the same fallacy, really. Even if politics is as corruptible as it's made out to be (which I tend to doubt), still I'd rather have more people with my viewpoint entering it...