I guess this comes with the inherent human nature of incessant want. We always want what we cannot have and we never know what we have until it is gone.
While most celebrities opt from some privacy, the rest of the population wants to be on tv. We would often read about how stars result to some unnecessary evil just to protect themselves from people who invade their privacy. Some go as far as taking it to court just to ensure their privacy off camera.
Majority of the unknown population though crave for the attention that these celebrities have. They go on reality shows and make giant fools of themselves with all sorts of nonsense stints. Sad but true.
