Well. Aren't we a clever little pixie.I agree with this. You are basically describing narcissism at its finest. ENTP and ESFJ don't automatically yield narcissism. I think ENTPs and ESFJs are just more susceptible to being narcissistic because of the potential for an unbalanced introverted function. Ne/Fe with no secondary Si or Ti is a surefire way to depend on your external world for validation.
I would expound upon this by saying that you are kind of describing Asperger's syndrome or autism. INFJs with Ni/Ti or INTJs with Ni/Fi and underdeveloped Fe/Te (respectively) would lead to a lots of intelligence and capacity for insight but zero grip on the external world, particularly within social contexts. I don't know if Jung officially had Asperger's, but it wouldn't surprise me if he did.
I'd also go so far as to say that paranoia, shizophrenia, and shizotypal disorders are a result of extreme N with nothing to balance that out.
I think unbalanced Fi also makes people more susceptible to depression, and then maybe Ne/Fi or Se/Fi makes one more vulnerable to bipolar disorder.
Of course, I can't really claim that your personality type causes a disorder. It's probably more accurate to say that a personality disorder causes one to be grouped into a certain type. It's chemistry, not categories.