Its because there aren't any Orks willing to say anything; they're all waiting for a new Warboss to rise on his/her/fungi's own, and none of the active Orks wanna be that toadstool. YOU are doing things and trying to get your Boyz moving again; other people aren't. In fact the only other person your faction has looked up to literally spit in their eye and buggered off, but you're still here. That kind of dedication and willingness to step up? THAT'S the kind of Boss da WAAAGH! needs! "It has to start somewhere. It has to start sometime. What better place than here? What better time than now?" Then again maybe the Orks should die out if all they are going to do is sit around and wait for a leader who isn't ever gonna come. It might be a mercy.