Ne is very useful. It is actually my dominant process, despite my being an INFP instead of an ENFP. Apparently, my Ne is just slightly higher than my Fi, but I am a total recluse who gets overwhelmed by excessive human contact. I could have selected it, but I think Fi is the most important of all possible processes. I only seem to get along with people who have enough Fi, regardless of what other processes they use along with it. In a "fight to the death," the Fi will go to extreme lengths to defend what is right, and will fight ethically if the value system has a stable foundation.