The sad thing about the TBL trainers is that they absolutely know what they are talking about, and when you look at things contestants are eating they seem to learn how to eat clean and healthy. Then there are those product placements that promote products that aren't clean AT ALL and sell them to overweight people watching the show.
Jillians weight loss book Master you Metabolism makes complete sense to me and IS about eating clean and working out etc. She seems to take this really serious. And still she sells that crap you described.

I know it's about the money. But there is a huge conflict of interests between promoting a clean healthy lifestyle and selling shakes and diet pills and the advertisement of breakfast cereals, fastfood and chewing gum etc.