I like the bolded, especially the last bit. This was the main difference between Fe and my boyfriend's Fi that I had to figure out. In sloppy words, my Fe is about 'keeping everyone happy' and you give and take as part of it. It's about making little adjustments here and there and tweaking understanding and behaviors so that all is in harmony. Fe tries to uphold a universal moral system that will govern all decisions and behaviors, and sometimes will be totally perplexed by the fact that for non-Fe users, the system doesn't even exist.
So, yeah, Fe isn't about being good or about sacrificing yourself or saving someone. That just happens to be the context of the world we currently live in.
And you're right about there being a conflict between E4 and Fe-ness. It's actually kinda fun to deal with.