This is the article I was thinking of. I'm sure you've seen it.
I don't associate empathy with Fe. Fe-doms can be incredibly cruel and calculating.Hmm... firstly, it doesn't always check selfish impulses... I've known some Fe-type bullies in my time who've seemed to positively revel in the pain and hurt they labour to produce in others... And secondly, it's not the only thing that can check them - fear of consequences (more selfishness) can be another.