Hi Haya,
Your question is very intersting and it seems that you can fetch big out of small looking bits. Now, let's move to the answer of your question.
I think the concept of marketing says fetch profit out of anything that looks unhappening to others. As we all are aware of the fact that Reality shows has less to do with reality but the core motive is the profit earning of the networks through such shows.
There are people who take interest in such shows and marketers need what hte customers for their promotions and there are large number of people keenly in teested in reality shows and that's why marketers found this channel of promotion more profitable from the point of number of consumers covered through these reality shows.
Like, film celebrities can be seen on these reality shows for promotions in this way marketers take advantage of marketing the film at less or negligible cost as the TV channels also want to show the film stars on their shows for marketing o their channels.
This is the mutual marketing dependence of marketers and tv networks for their promotion and profit earning at less expenses.
