You are speaking here mostly of the ISFj spectrum. But what effect does Ne have?
A word associated with Ne is "possibilities", which is what I was thinking would make INFjs more "open" and "forgiving" - less tied to what actually happened and more accepting of differences. Perhaps. Or more open to different realities (though that sounds convoluted to me )... Maybe a better way to put it would be more allowing of different states. (No, that still doesn't sound right...)
Fi is judging. So why couldn't it judge someone as "bad" just as well as judging them as "good" and deserving of forgiveness?