The issue is really the publics insatiable appetite for gossip and scandal coupled with the desire for business moguls to make money.
This is different from the journalists being able to report the truth for benefit of the public. There should be a distinction between those hacks who want that juicy bit of gossip and those papers who just want to enlighten people.
However until the addiction to enjoy reading about scandal or peoples fall from grace, the public want to buy this tat. Simple supply and demand