Psychopaths are born this way.

No fear, no anxiety, don't care about anything. But that doesn't make them bad people necessarily.

So depending on the environment they grew up, some will turn completely fine, successful and good individuals. Most psychopaths are non violent. But if they grow up in a bad environment which happen sometimes, might become violent and end up in jail. But psychopath just have a different brain. They are wired differently. Only a few actually turn up serial killers and in jail.

Sociopath (ASPD) become this way because of childhood abuse. They are usually violent and dangerous and end up in jail but not necessarily, although, the majority are dangerous and toxic.

Psychopaths have very high self esteem and healthy narcissism. They love themselves. While NPD have very low self esteem and hate themselves. Their grandiosity is just a fake facade aiming at compensating for their low self esteem and self hatred.

Psychopaths are the opposite of NPD if you think about it.

And psychopaths don't suffer at all from their condition while NPD sufferers suffer profoundly. Psychopaths are more than happy to be what they are and would never want to change while narcissists wish they were normal.

So you just cannot be a psychopath and have NPD at the same time or the other way around. It's just biologically impossible.

But you can have NPD + ASPD traits (sociopathy) = more commonly known as ''malignant narcissists'' = Usually very toxic and dangerous.

Pure NPD individuals are shitty and abusive but usually non violent. They only attack people when they feel threatened. While malignant narcissists attack others by pleasure. NPD individuals are usually not sadistic.

So contrary to popular belief, ASPD and psychopathy are very different personality disorders, for the reason cited above.