Also, I clicked on kelvin0 and the only thing the profile says is YCOMT which appears to be You Came On My Tits (at least according to Google).
In my humble opinion, yes, content is not king. But, it's more than just allowing people to put a face to the name. You have to fit in. You have to agree with the political views of the majority. You have to agree with the taboos of the majority. There's a reason Michael O'Church and Zed Shaw aren't on that leaderboard, despite the quality of the content they posted.
No, you don't; the people with lots of karma don't have homogenous expressed political views, so they can't all agree with the majority, either. How you post about your views is a lot more important than what your views are.