Power flows through people in some mysterious way.
At one point, Napoleon is the most powerful person on earth. He comes back from his first exile and is again put in charge. But after his defeat, he’s suddenly a powerless puppet who can be tossed aside.
Meanwhile, Emperor Alexander – who, after Napoleon’s defeat, becomes the most powerful person on the continent – just takes that power and chucks it away himself.
We don’t really know why things happen. We just know that they do happen, and we can only try to figure out why from our limited point of view.