Not purely, in my view.It's like the entire topic of discussion is purely constructed.
I think there is a tradition in D&D (at least as the rulebooks are written - it's hard to know how much actual play experience of the myriad groups playing D&D matches the books) of trying to solve social issues via ingame devices.
The highpoint of this trend is probably the 1st ed AD&D DMG, which says nothing about how to handle social issues that might arise in the game (compare to the 4e DMG in this respect). But it does give us alignment rules: - the social problem is players wanting to play distasteful PCs, and the solution offered by the rulebook is an ingame one, of alignment rules to be applied forcefully by the GM. And in the section on "the ongoing campaign" it tells us that the PCs of disruptive players can be struck by lightning hurled by the gods - again, an ingame solution for what is a social problem.
In my view it is this feature of AD&D's presentation (peculiar to that game, I think - it is not found in 3E or 4e, nor as far as I can recall in Moldvay/Cook D&D, nor in any other RPG I'm familiar with) that is one of the sources of AD&D's reputation for fostering abusive GMing.
AD&D also has another feature that is fairly distinctive for an RPG, and which perhaps has continued into later editions: namely, the notion that the PC can be created independently of some particular gameworld, and taken by the player from world to world.
A third feature of D&D is that it tends to be treated as a toolkit - with bits and pieces to be added and subtracted from campaign to campaign - much more than most other RPGs.
I think that these things add up to create the issue that is being debated in this thread.
For what it's worth, I sympathise with those in this thread like Buzz, Lost Soul, Scribble ect who think that social issues should be handle separately from ingame issues, and that the GM has no special status in resolving those social issues.
One of the more important social issues to settle, of course, is "Which game?" and "Who is GM?" The first question is not answered simply by saying "D&D", given the tookit way in which D&D tends to be used. It is not answered until we know what sorts of PCs are permitted. It seems pretty obvious that the answers to these two questions have to be worked out together. But it doesn't follow from that that the only person who takes part in answering them is the person who ends up being chosen as GM by the group.