Students in Middle and High school feel awkward and a need to belong--anywhere. I believe the movie makes the point that, while the need to belong is a normal desire for a school kid, no clique is superior to another. Example:
Princess: "So (physics club) is an ACADEMIC Club."..."It's not the same as other types of clubs."
Bender: "But to dorks like him, it is."
It also makes the point that despite all the attitude and bravado, high school kids are still just kids.
By the way, I am most like the basket case.