He had won the war – in the future that is. He had sent his mind back to his dreams, to convince himself to become what he would be, far earlier than he from the future did. Caught between serving his destiny and that of a higher purpose – a higher calling – the mysteries of the Wizarding World close around him.
True character is measured by our deeds in life; we cannot retract what has been, nor can we see what will be. The only comfort we have is in our choices - and legends are born from choices.
Life as he knew it was bereft of anything for him to fight for. Society, government, the press, and the system; all were against him and his success. He finds that his destiny lies not in fighting for people who had proven themselves unworthy. With unworthiness comes discontent. With discontent comes anarchy. With anarchy, there rises a rebellion. And this was his rebellion.