I seem to remember a friend telling me - he was a Rotarian, and this was some time ago - that most Rotarian are local business men, and there is a sort of vetting system, I think with all the really good work they do in the community, then there has to be something like that. I would assume that most clubs have their 'cliques' like minds will always mix with like minds, it is just a question of, if you join, take things slowly, although I do know it is quite an expensive hobby. They do give a lot of their time to the community, certainly where we lived in the past and where we are now.