Sigma male..does he exist?

So i came up recently on the sigma male definition..According to vox: http://alphagameplan.blogspot.gr/2011/03/socio-sexual-hierarchy.html

Sigma: The outsider who doesn't play the social game and manage to win at it anyhow. The sigma is hated by alphas because sigmas are the only men who don't accept or at least acknowledge, however grudgingly, their social dominance. (NB: Alphas absolutely hate to be laughed at and a sigma can often enrage an alpha by doing nothing more than smiling at him.) Everyone else is vaguely confused by them. In a social situation, the sigma is the man who stops in briefly to say hello to a few friends accompanied by a Tier 1 girl that no one has ever seen before. Sigmas like women, but tend to be contemptuous of them. They are usually considered to be strange. Gammas often like to think they are sigmas, failing to understand that sigmas are not social rejects, they are at the top of the social hierarchy despite their refusal to play by its rules.

Playing with his own rules and not being dependant on money/social image sounds to good to be true what you guys think?