Then he abolished money. Then he raised the productivity of the rice paddies by administrative order. And that was just the start....
He was definitely "Number One". But he was also just a "Brother" like all the other brothers, humble, humane, knowledgeable without showing off, hardworking, self-effacing, etc.
So modest was he, that Cambodians didn't hear of his name (or nom de guerre) until around the end of his wonderful "Year Zero".
Although he didn't compete with Chairman Mao in feats of swimming prowess, poetry composition or table tennis; nor with Prince Sihanouk in film-making or entertaining press interviews, Brother Number One would always lend a hand washing the dishes, digging irrigation channels, cleaning out chicken huts, cleaning rifles, and authorising vigorous interviews of the many untrustworthy subordinates which the burdens of history had laid upon him.