My husband has worked as a videographer on several reality shows. In most cases (not all), reality shows are well produced. Nothing just 'happens', it is ALL planned. The participants are guided on what to say, how to say it (especially if it will antagonize someone else on the show or pull at the heart strings), where to stand etc. by the directors/producers. Plus the editing makes a scene 'seem' a particular way, but in reality it had never played out that way all. They have to manipulate the footage to get more shock-n-awe. So no, I never use reality shows as any type of measurement to my life. There's nothing very 'real' about them.
You may ask why the participants would do it if they aren't being portrayed the exact way it happened. The answer - they WANT their 15 minutes of fame!!!!!! My husband asked someone once why they would be on a show that makes them look bad. Their response - I'm on TV man!