Narcissist

Someone with narcissistic personality disorder, or NPD.
Contrary to popular belief, these people are not inherently evil. Some narcissists can actually be decent people. The disorder is often demonized due to a lot of abusers having it, but I cannot stress this enough. It is not the disorder itself that made these people abusers. The disorder may have influenced some of their choices, yes, but at the end of the day the decision to abuse someone is up to the person, not the disorder. Narcissists did not choose to have NPD. Not all narcissists are evil.

Person 1: Hey, I have Narcissistic Personality Disorder.
Person 2: You're a narcissist?
Person 1: Yeah, but that doesn't mean I'm evil. The disorder is wildly stigmatized and I'm trying my best to handle my symptoms better.
Person 2: Oh, okay!