Chris has what I’d call Limited Empathy. As in if you are around him or speaking to him and he doesn’t want anything from you other than recognition or friendship he can and will do his best to be nice to you. However he doesn’t think of things beyond that. He’s also got a history of being mistrustful to men, but that’s not a lack of empathy, it’s jealousy and several bad real world experiences with bullying and other complex mental issues likely related to his autism.
I do think that is Chris saw someone dying at a con he’d feel bad for them but also be too panicked and inexperienced to actually help them.He would likely forget about it after a couple of days though. If someone reminded him, then he’d go “oh yeah! And I was there for that!” And maybe, if the person was (Un)lucky and had a vagina and cute face he’d send them a drawing of something Sonichu related and then brag about it on Twitter. A sociopath no, a narcissist yes.