I don't think it makes sense to weight that one detail more than the entire rest of the article. It's better to drop the worst outlier, as the guidelines ask, and focus on the rest of the content.

There's another point too: it's easy to misinterpret what someone means by a single token like that. It may have an obvious meaning to you, but it isn't clear what the author had in mind. This isn't nearly enough information to justify an extreme conclusion like "sociopath", and when you jump to such a label, what you're doing is not so different than what you're complaining about in the OP.