I believe being uncooperative translates into, ultimately, disrespect, and defeats the purpose of belonging to a group. Many, I suppose, will join up with others in order to not feel alone, but if they are not contributing to their fellows and the shared goals of the fellowship, and are instead strictly benefiting from efforts not their own, I don't think they deserve to be a part of the fellowship. And, really, unless they provide stellar comic relief and entertainment, what's the point of their membership? (even that wouldn't be reason enough for me to tolerate slacking, but I understand it more)