In addition to that, they do some good for the larger community, such as starting the Open Compute Project (http://www.opencompute.org/). That effort is what has me considering Facebook as a next career step (I would love to work on that stuff).

Now, this is not an attempt to defend Facebook's actions here or in their other recent efforts. I am merely providing another point of evidence to support MichaelGG's point that Facebook is not flat-out evil, and provide a reason someone might want to work for them despite their recent behavior.