A servant is not consumed with himself, but with pleasing the one he serves. Jesus took this to the ultimate degree and died for those he served. If my desire in leadership does not take me to lead me ultimately to a willingness to die for those I serve, I am seeking my own good. Maybe it is because this is what was modeled for us by our authorities or because in our sinful nature it seems logical. But it is not from God.
Most anger is the result of poor communication and narrow-mindedness.
Anger is a dead end. It will never accomplish anything but to damage your testimony and effectiveness. God is totally capable of balancing the books. That is why he sent his Son to die. The cross balanced the books.