Fair enough. The questions asked would matter a great deal as your post indicated. Are you interested in current conditions? Long term survival of the species? What if wide spread famine now we're required to prevent global environmental catastrophe? What if the ai decided there were simply too many of us?

The power of an AI overlord (not quite what you suggested) would be its ability to see the big picture and respond decisively. Unlike a supposedly benign human dictator, it might never succumb to ego mania or get too old. Otherwise, its still a supposedly-benign dictator. I'm just thinking aloud, not criticizing at all.