Quitting IS a form of protesting the administrative decisions. Joining a company that does respect privacy IS a form of exercising one's own values in one's employment.

So you end up selecting for a company full of spineless yes-people. The logic makes zero sense to me. Apple isn’t going away anytime soon and the best opportunities for change will come from consistent internal pressure.

This sounds noble in theory, but did it work in this case?

Of course we might not know of cases that got resolved by internal pressure, because they got resolved, however we do know this was not one of them.