I think people have misinformed notions about how much power the president really has. Obama's stated core focus was and has been on improving the situation for the poor/middle class. That's a big task on its own, I don't think you can expect one president to take on and dominate such variety of large tasks.
But now that things are in the open, support a candidate who in clear terms promises challenging these NSA programs for the next election cycle. Yes, Obama said he would do this in his own campaign trail, but it was unclear probably to him what he was up against exactly and how difficult it would have been to resist it alone. My optimistic take is now that we all know to a much greater degree what's going on, we're in better position to do something about it.