There is a world of difference between a respected bench player, (Bogans, Cassell, Dooling, PJ Brown), and a player playing poorly as the 6th man who's constantly calling out the team via the media.
Not to mention these call outs started in the preseason IIRC.
I definitely didn't say there wasn't did I?
I believe Roy's assertion was that a leader "needs to lead by example, by performing on the floor," and I think you agree, saying Wallace doesn't have enough "game" anymore to be a leader.
Bogans, Cassell, Dooling, Scals, etc, certainly didn't/don't perform on the floor so I'm not sure what your point is.
You said it yourself:
If your game doesn't back up your talk players aren't going to listen to you.
...but the guys you listed didn't have any game to back up their talk so how did anybody possibly listen to them? (It's because, like you said, they were respected and that means way more than performance)