I don't want to seem sexist here but I think it's a woman thing driving fame and fortune in this way. Victoria Beckham, Gemma Collins, Katie price are all like it but at different degrees.
Even footballers wives are only famous and get celebrities status these days because they are married to football players. They go on celebrity big brother and I'm a celebrity and other celebrity shows because of who they are married To. Don't they? 
Yeah it's this whole "Cult of celebrity" shit that women / girls especially seem to gravitate towards and aspire to be like XYZ and they sit and watch all this shit on TV to the point the program schedules are packs with it.
It's become a self fulfilling prophecy now as people watch it as it's on and if the viewing figures are OK they keep making more as it's "Popular" so a lot of people are then forced to watch it as it's on prime time TV

It's the old famous for being famous, these people seemingly serve no purpose like 20 or so years ago when the phrase "It Girl" came about, appeared to me they were just leeches freeloading and getting invited to parties, probably helped being young and good looking plus no doubt shagging the right high rollers
