People who aren't embracing Federation ideals are painted as primitives in some way, needing to be enlightened. Look how Sisko and Kira despise the Ferengi initially. That gradually let up a bit. And just as it seems that we can tell stories about a rich culture that will never embrace Federation ideals without them being the enemy or self destructive lunatics (Klingon politics) they have a coup and turn the whole culture on its head !! And make the new leader soooo sorry and wanting to makeover the culture into the rootbeer image.