QE2 brings stability and focus for the crumbled Empire and a world that’s changed what seems impossibly in her lifetime. She remains above it all in spite of a really weird family and a nation hell-bent on self destruction. What has she ever done that has harmed her nation?
Maybe it isn't just the monarchy as we've had to save them in two world wars, likely be faced with choice of helping or watching them fall again in the future. Maybe it's the people?