One last thing, which I want to take out of the context of prior discussions and have it in its own context: the source of NiTe arrogance. It may be difficult to believe, but INTJs are really very unsure of themselves, we lack confidence, and in general would really rather hang back and be unobtrusive and observe and learn. The INTJ is very afraid of saying something wrong. Yet, Ni eventually comes to understand certain things very well. Extremely well, even. The INTJ becomes a true expert. (Immature INTJs can believe that one is an expert when it is far from the truth ... that's a different matter, that does not contradict the point I am making here.) For those things in which the INTJ is a true expert, a different personae appears, however briefly, when an issue to which the expertise pertains arises. We just know
we are correct, our knowledge and understanding has been tested, perhaps for years or even decades. We also know what we do not know, and we don't make assertions on that.
Now consider the selection effect: when we are unsure, we are silent. When we are very certain of ourselves and the truth of what we intend to say, we speak. Of course
we're going to come across as arrogant pricks if we're not careful! But it's a selection effect: unlike INTP, for example, we don't go asking questions and musing aloud. We stay silent, trying to develop our understanding. You will only hear us when we are "being arrogant." The degree of self-confidence that it takes to overcome our natural reticence and shyness is rather high.
That's the NiTe arrogance, in a nutshell.