By "Controlling the Message" I mean setting the agenda, usually by putting something out there that causes other people to shift their own message to be more like yours. I can think of a few spectacular yet small scale examples that are safe to talk about. I'll give you one, although if certain people hear this they may not be happy.
When I first joined the Anthropology Department at the University of Minnesota, there was a meeting where everybody introduced themselves so new people could get a bead on the old, and the old people could test the new waters. Based entirely on where I was…