jman, your long post above here was really good and I agree - and I hadn't known about many of those talk show disasters. But shining a spotlight on someone unstable can do all kinds of damage, I think. That is an unnatural situation and if they're already obsessing about negative things, now they have more reason to - because they will have to realise that the entire nation might have seen their flawed self, too! (Not just their home town). Especially if they felt the show would make them feel good and then they were ridiculed. Or 'surprised' (I hate those surprise shows). And now anywhere they go someone might say "aren't you the guy whose girlfriend slept around on him?" etc.
The guy who shot the guy after the Jenny Jones taping, said that he just kept thinking over and over, that everyone (in America) will now think he's also gay. That he would never have a chance at a happy life. (Job, wife, etc.) That he'd now have to worry about people thinking that/making fun of him (people were already teasing him about it once he got back to his town). He had gone on the show hoping for a new girlfriend ('secret crush'). He did name fear of the show airing and what people would think, as a reason.
Robin Quivers is a smart lady. A lot of people in 'show biz' are narcissists, or even sociopaths. It isn't easy to 'make it' in that field and some people who do, have done not so nice things to get there. The values are also often skewed. Money, fame... trappings a narcissist is fed by. (Note, I'm not saying they are all this way. Some actually are there for love of their art.)
Maybe James Frey is a sociopath. I have not seen enough of him to have an opinion. I have not read his book. If so, we can stop worrying about suicide - sociopaths commiting suicide is nearly unheard of. They don't feel guilt, they don't ruminate. They just spin as best they can, and move on.
Not sure what you meant about Dr. Phil, jman.