I always make this mental distinction: to psychopaths, emotions are alien, including fear. That's why they _can_ be such remorseless killers, almost not caring

I always make this mental distinction: to psychopaths, emotions are alien, including fear. That's why they _can_ be such remorseless killers, almost not caring about self-preservation. They'd look at a distressed human like we'd look at a twittering bird. Next to this are sociopaths, who actually have emotions, understand them in others, but only care for themselves and thus game the entire system of human interaction. A psychopath would be able to stab a bystander `because he looked at me funny-like` whereas a sociopath would abhor this violence, but _would_ be okay with gaming his parents out of €50,000, use this to set up a fake investment company, con 20,000 people out of their retirement savings and then just disappear. Is there any grounds to this distinction?