This difference between INTP and INTJ must be why INTJs are often more successful. I may be a rarity, but as an INTJ I second-guess myself all the time and have worked hard to train myself out of being arrogant so.
Though not entirely accurate it does show how a function changes its purpose depending where it is in the stacking.
MBTI No, this is so accurate though! I (INTP) really don't care if you do or don't wear a seatbelt. My mom (ESFJ) always tells me to "buckle up!" And my brother (INFJ) tells me, "it's to keep you safe.