Oh yeah, individuals are a way different matter than the media at large (look at this thread, for that perfect example). Still the media can affect mass amounts of people. Think of all the people watching shows like TMZ and Entertainment Tonight and these stories are so sensationalized to show someone in a bad light that many start to believe it. And when a "product" is not able to sell to the masses, the directors who know better have to put that aside and focus on what makes them the money.
The reason COULD be their different professions, but there's definitely a big heaping serving of sexism in there. There are so many examples of men being vindicated for their behavior while women aren't... Say, Brangelina. In the media it was like OH HERE COMES BIG BAD ANGELINA TO PUSH JENNIFER ANISTON OUT OF THE WAY AND STEAL HER MAN. Meanwhile it's like... BRAD CHEATED. HE was the one with the marriage vows that HE broke, and yet all the responsibility was put on Angelina or Jen (as if Jen couldn't "satisfy" him, like that was her job or something).
But, ling, is Emma not also a part of this business, which sell's a product with "sex"? Taking the definition, that "sex" starts with a french kiss, even Harry Potter had sex..... And seeing the first pictures of "Bling Ring", I thought, "now you too, Emma?" Or take "Perks". Put the sexual storylines out of the book, what would remain? The whole story is based on it, with all the possible different facets. And even Emma said she would get naked if a script of a movie would reasonable explain why she should do it.
And speaking of marriage vows. I think, that men and women are still running on rules, evolution told them many, many, many years ago. Marriage and the force to be only with one partner is nothing evolution told us; it is a thing society invented for different reasons. And it does simply not work. We are running on instincts, on instinct alone. 200 years ago marriage problems were solved often "discreed", nowadays you can get divorced in public without getting a ban from the church or society. And to break up a marriage needs always two. You do not know how their (Brad/Jen) private life was (privacy, to be respected), so nobody can say if Brad is a always a nice guy or Jen is not a annoying little witch when the front door is closed.
Gossip and "look behind closed doors" are part of the media for 200-300 years. Maybe the whole thing is a little bit more aggressiv now due to modern communication, the internet, digital photography and the absolut addiction to money.