This seems a little grudging - it takes more than humility and a sense of humour to be a great general. He had a sense of his own worth without being arrogant. He was obviously a man who thought long and hard about what was necessary to beat the enemy. Making sure his men were properly equipped and trained, and as far as possible not putting tired men into actions they had little chance of winning. Some accused him of micromanagement and certainly he spent a lot of time on detail. But this ensured he knew what was going on, and there were many occasions when he allowed his officers to make their own mistakes. He seems to have spent more time up near the front line than most generals, and it must have improved his men's morale on seeing him. Because of his relatively low birth, he was not a snob, and just as importantly didn't become one. Finally the mere fact that he so comprehensively defeated the Japanese, speaks for itself.