Well, it’s not universally true (and the MBTI of course has to be taken with a grain of salt) – but when I hear of INTJ my usual association is that of cold and sociopathic.
However, that’s a stereotype and not universally true at all.
I’m INFP, although I don’t fit all of the stereotypes of the INFP either. As time has gone on I’ve found myself closer to the INTJ, channeling my intuition into familiar logic patterns of the T when necessary, and even able to “call right and wrong” as I see it like a J.
Still, the empathy in my always rules. The main difference is that I can separate “me” from “not me” better.. which I think is the TJ getting stronger.