Among the analects left by Genghis Khan who built the Mongol Empire, there’s a quote about his favorite servant whom he felt sorry for.
“Yesun Bei is a great warrior. He does not get tired after a long battle. Therefore, he thinks all the other soldiers have his stamina. He gets furious when others cannot perform as well. Such a man cannot become a commander.” [Source] http://mengnews.joins.com
A good leader is not the one who does well by himself, but the one who takes part and understands difficulties the group members are going through.