Why does there need to be a group? Why can't all games be played in one fellowship?

To use Golden Heart as an example. Why is there a need for more than one Golden Heart fellowship? Because of what GH stands for, or purports to? Does that make it better than any other fellowship? I'm sure all fellowships profess to have the same standards. I can't see a need for 'GH Checkers', 'GH Chess' etc etc. Sooner or later there'd be a 'GH Central' with someone in overall control. God forbid we reach the situation again whereby the 'leader' sneezes and a dozen underlings spring into action to wipe his/her nose for him (yes, I was going to use another analogy but I thought better of it!). AND hurting a lot of good people along the way - people who DARE to criticise said fellowship or any of it's members. Legalised bullying.

So Golden Heart as one fellowship with one big boss. End of story. Where's the problem?