I'm not sure what you mean by "owning a piece of everything", I myself don't feel like that's the boards role at all and I'm not sure if there are any other members of the board that would feel that way?
I think if the board feels free to directly change the membership's consensed-upon policy decisions and preferred style of governance whenever it likes, then that's basically owning a piece of everything.
"the board owns and makes decisions on any action that impacts the lease or Noisebridge’s existence as a non-profit." --Will Sargent
I think that's a great point.
If the board sees itself as owning a piece of everything that goes on at Noisebridge, the board will probably not be very effective. Too much in scope == too little accomplished.