They are like the Kardashians, their lives are their main source of income, and they want a comparable lifestyle to the Kardashians and that can only be sustained by a constant flow of 'tell all' stories that grab the headlines.
Whether, like the Kardashians, they will know the optimum moment to step back, I am less convinced. I think they will become like so many 15 minute celebrities, desperately selling themselves in tawdrier and tawdrier venues for less and less money and ending up in debt and bankruptcy - except, at that point, The Family will step in, sort them out, but at a price, banishment to a grace and favour residence in the Scottish highlands or deep in the Pennines, with occasional trips further afield.