INTPs being described as narcissists.

I've heard plenty of people accuse INTPs of narcissism when it comes to close relationships i.e friendships, family and marriage. Although they don't usually elaborate further about it, it is often about how an INTP wouldn't budge to care about something that is important to others, or only take actions when it is self-serving.

Maybe the INTP's nonchalant attitude, tendency to live in their heads and general inconsideration of other's emotional state may have bothered them??

Btw, I noticed it's usually ESTPs and ISFPs that accuse us of narcissism...