Well, for one thing, you seem under the mistaken impression that Mark Zuckerberg/Facebook had anything to do with the production of this film. They didn't. It's not some unholy union of Hollywood and social media. It's a dramatization of a story in the public record, which last I heard Zuckerberg wasn't hugely thrilled about but it's not like he could stop it.
Do you object to the existence of CITIZEN KANE? THE AVIATOR? PIRATES OF SILICON VALLEY? MAN ON THE MOON? RAY? ALI?
Not to say TSN is on the same quality level as any of those films (haven't seen it), but a biopic's a biopic. If you're cool with biopics, I don't see what makes this one any different other than it's about Facebook and it's hip to hate on Facebook. Not judging, I do it too.
For the record, I don't see anything inherently wrong with the pop culture machine. SERENITY was the result of the pop culture machine. BATMAN BEGINS and DARK KNIGHT were results of the pop culture machine. Hell, EMPIRE STRIKES BACK was the result of the pop culture machine of its time.
But of course, the pop culture machine also brought us pretty much every shitty and unnecessary sequel ever made, and a number of adaptations we probably could also have done without (I'm looking at you, every movie based on a video game). The pop culture machine is amoral, it's all a question of whether or not it falls into the wrong hands.
Just because something had its roots in a business decision doesn't mean it can't also be artistically valid and powerful. The Sistine Chapel was a work-for-hire, let's not forget. As were most of the works of Shakespeare. The question is, did they just slap something together, assuming the pop culture association would do the work for them, or did they treat it as seriously as any other project and make a real movie?
Again, I can't answer that question, because I haven't seen SOCIAL NETWORK. But dismissing it based on its premise or the fact that it's a commercially lucrative premise seems a little wrongheaded, since pretty much no film gets greenlit unless the studio thinks it has the potential to be commercially lucrative.
That being said, I think it's perfectly fine not to be interested in it. I'm not particularly interested, since I don't much care for Facebook or biopics and I feel like I've seen the fall from grace story plenty of times, but it's getting good reviews and a few people I know have already seen and recommended it, so I expect I'll find the time to see it before the weekend is over.