While FB as a company certainly is not altruistic, they employ quite a few privacy-minded engineers. Data leaks to the outside of their walled garden are very likely treated as company-wide problems, but as the LGBT doxes showed, there are wide implications even within their walls. [0]
As they try to capture ever larger parts of the online population, they will* keep colliding with non-Western, non-SV norms. The privacy issues may be nothing but a canary in the goldmine, because they are mostly an expression of non-SV values. For example, I have my doubts about how long images of traditional Hindu artwork would be allowed to stay up...
0: http://www.huffingtonpost.com/2015/03/27/facebook-authentic-...