Another thing, consider that civilization has been going on for thousands of years.. some societies and/or creeds that might characterize a general "accepted" norm of behavior or whatnot would be recognized as valid on both Fi or Fe levels. So it's not like only Fe is aware of them, and that Fi is constantly trying to reinvent the wheel. Fi isn't saying "Yeah, I am an individualistic jerk to whatever is accepted as a social value." There are departing points, but I don't think it's usually that dramatic.
I'm only 50% sure I know what you're talking about.
But I'll respond anyway
I think another thing to keep in mind is that no one, and I mean zero people, use only Fi or only Fe. Everyone has some percentage of the time that they use either. Some people may be up to 80% or so, but the closer to 100% you get, the more crippled you become. I doubt anyone who can even post on this site is above 80% in any function.