Fame and other hideousnesses

I do wonder at people sometimes. What exactly goes through people's mind when they apply to go on one of the makeover type reality TV shows?

The one that gets me is "How to Look Good Naked". Now, these women are supposedly so ashamed of their appearance that they won't strip off in front of their partners and hate their body completely. Yet they'll strip down to their underwear in front of tv cameras so everyone can see them????

Or the house ones. Not the ones where you go out and come back and the BBC have finished your DIY/added an extension, no, the ones where sniffy women come along and turn their noses up at just how disgusting peoples homes are and then show them how to clean. Like, is it really worth that level of embarrassment just to get your house tidied? They don't even do it for you!

Basically all these programmes do is get stupid people to get told off smugly on TV. Then you have the likes of Supernanny and House Doctor who come along and tell idiots to apply some common sense and tada! The problems are gone.

But WHY would you do that for 15 minutes of not really fame, because noone will remember you once the credits roll, apart from your mates who will never ever let you hear the end of it? Is it really worth it for a life/face/house/parenting makeover?