I don't know, man. Sociopaths are generally, and almost by definition, good with getting people to do what they want. They surely fuck too much for their genes to not be passed on. Whether or not being a sociopath is genetic is beyond my knowledge.
Like most human traits, I imagine it is a mixture of nature and nurture. I agree, they probably breed as much or more than the general public. But I also imagine that many die young or are imprisoned, thus having less time to do their excessive breeding.