I don't get so many people thinking that Wilson is a wimp.

Thank you for saying that, because I don't get it either. Especially in this episode. People seem to think that he was being controlled, simply because he keeps quiet about what he's planning at any given moment (the fact that most people seem to believe that 'quiet'='too nice to have manipulated us into this situation' is something I know from experience)... He might go out of his way to give House and Amber the impression that they control him, but that doesn't make it true.