Without Fe, we would have less cohesion as a species. That would mean we're less likely to form clans together and only tend to our immediate friends and relatives, instead of stand together. We'd care for one another but from a distance, with the exception of those select few we have bonded with through Fi.
Te might take over and try to lead the species to their purposes, but doing so would probably make the world very efficient but also very cold to live in. We'd also be a lot more vulnerable. The bigger a group, the more you're protected.
It would be kinda like with cats, the only reason to get together is a common source of food, and to manage not killing each other over it they do this thing called 'timesharing'. I'm there when you're not and vice versa. Appointments. If I don't like you I get to avoid you in a civil way. If you're attacked as a cat, even while in a colony, you're on your own. You're also on your own for food, even if you're injured (unless you're a kitten or something). You have the freedom to go and do as you please, as long as you don't get in another cats way,but also the risks that freedom entails.
Dogs click together. They have a hierarchy, which leads to pecking order, which also allows for standing together when one member is threatened, and caring for a wounded member of the pack. You do however have to follow the leaders cues and know your place, but it allows for a feeling of being part of something and it provides protection.
Without Fe, you get a cat society, and we as a species are less protected. And we do not have the weapons and flexibility a cat has to get herself out of every situation