Aww, he's there to make television. The same reason that the specific people get chosen to be on his show. If he didn't raise controversy he'd be dropped.
He just appeals to a particular daytime audience. I saw bits of his shows a couple of times while zapping and I was more taken by the people he was dealing with. Most unusual - if there were "for real" I'd never have thought people got into such messes and need national television to help.