Correct me if I'm wrong, but INFP's are much more likely to drag their feelings along. And being influenced by the consequences drastically different from how INTP's deal with it. For INTP's, reason is law. We'll try everything we can to diminish the pain through by any means neccesary, as long as it is reasonable. If we conflict with our own reason, that's when we'd truly feel hurt. Whereas an INFP might be able to accept not having gone with reason if the outcome was somehow overall 'better' to their Fi.