The difference is that bugs in the social network parts of Facebook (the ones where you see your friends and family's pictures and posts) are not directly makin

The difference is that bugs in the social network parts of Facebook (the ones where you see your friends and family's pictures and posts) are not directly making money for Facebook. The only real stuff that matters for the money is all the tracking. I bet the people responsible for Facebook Ads Manager are a lot less enthusiastic about "move fast and break things", although I'd be interested to hear an opposing viewpoint from anyone here who's worked for that group.