I am not really sure whether there is any way, given Facebook's corporate structure and investor/shareholder voice/power, that Zuckerburg could be overruled. T

I am not really sure whether there is any way, given Facebook's corporate structure and investor/shareholder voice/power, that Zuckerburg could be overruled. The final decision, I think, is entirely his - albeit that he was probably advised by the top people around him. Given that, then this seems to me that his passion for this is strong enough to overcome any reservations he or anyone around him might have. He's not dumb, and he surely knows what's what re current PR and image problems etc, so this looks (to me) like an expression of belief in what his vision is for the future.