Before I start, I must say that I am not a fan of either Jeremy nor their shows. If it was done behind closed doors, then the fundamental principle behind the Jeremy Kyle/Jerry Springfield/Esther Rantzen/Kilroy etc shows is sound as they do actually try and help people. Also, the people who go into these programmes do so of their own free will, they may well be victims of their life choices, but they are certainly not victims* of the production companies.
The bluster you see on the screen is for audience benefit as it's an effective form of car crash TV.
The value of such shows to the TV companies is in the ratings... The more people tune in, the higher the value of the advertising revenue.
And that's the crux of it, the content is largely irrelevant as people will watch pretty much anything. It's all about selling product to the masses...
*self inflicted exploitation is not the same as being a victim.