Yeah, my understanding is that they exist. Just wondering, how would you expect to hear about a non-evil sociopath?

Yeah, I'm totally on board with you there (though I'm not really fond of the word evil). I remember hearing that psychotic people are much more likely to hurt themselves than average, but not more likely to hurt others. And yeah, it's bad to consider them to be "evil" when they're not or to contribute to a societal model of them that does the same.