It is strange to read what you've written.
Mostly because I personally think the long-term effects of corporations, particularly Facebook, ganging on our society is going to be immensely more deleterious than anything our government could do or wants to do. When Facebook thwarts free and organic growth of something in favor of content pushed by those who have money (shoddy companies selling fat-loss pills which are going to moreso fuck you up than make you lose weight), I consider that something seriously screwed up. When it reduces exposure of content that's non-compatible with your views on your feed to keep you warm and cozy, perhaps in an attempt to prime you for certain political ads, that's some serious shit.
Facebook really IS something extremely horrible, people don't realize it. It's very sad that even on HN you see strong defense of Facebook. Facebook and its founder have been involved in one sleazy act to another (from privacy zuckering (https://www.eff.org/deeplinks/2010/04/facebooks-evil-interfa...) to offering his friends private information -- "yea so if you ever need info about anyone at harvard; just ask; i have over 4000 emails, pictures, addresses, sns" - http://www.newyorker.com/magazine/2010/09/20/the-face-of-fac...).
Right now, it isn't Poitras who has done one thing after another to make me doubt the words coming out of her mouth, it's someone else.