So what is in the public interest? People are interested in a strange number of things: I have a young teenager, and what is not interesting for him seems to be anything I am interested in, unless I can sneak it up on him without declaring my interest first.
The "Winner Syndrome" or "winnering" is the process of trying to convince someone that your point of view is more valid then his or her's. It completely stops communication because you aren't listening to the other person's side when you're "winnering."
A common psychological principle used by advertisers is that repetition constitutes mental conditioning. Studies show that the more something is repeated to you, the more you will believe it.