>>10812777There's plenty of neurological evidence of where it probably originates (anterior cingulate cortex, frontal lobes, maybe a third place). The trick would be /how/ to activate it. The general idea for sociopaths is they are default "off" on empathy, or can more easily disengage their emotions. For the latter, literally a brain implant might be all it takes, disrupting neurons that disengage empathy, or intentionally stimulating relevant parts.
For people with actual brain damage/atrophy, you'd need really experimental stuff, like stem cell injections, and even then it probably wouldn't work. The problem is while being a psychopath/sociopath can have clear physical markers with a high correlation, it's not a guarantee. There's usually some lack of empathy, but it turns out, in certain pro-social situations it's advantageous (a cop shouldn't cry at a murder scene for example). There's borders between "acceptable disengagement" and "unacceptable", and it depends on your role. A lot of people normally don't care about others if it doesn't personally and immediately effect them.
A good point to make about empathy/sympathy is it provides a mechanism for OVERRIDING behavior. If someone's a drunk driver, should they be considered callous because they create a dangerous scenario for other drivers? Surely more caring/empathy could prevent them from drunk driving, but is that a scenario we want to treat, instead of the "steal from family" kind of people.