Kabbalah teaches – there is no good without evil, and evil without good – I have a cousin who is a Rabbi of a very large congregation and he counsels many people – "this saying" he says "is integral to mental health" – You see, frustration is a product of unrealistic expectation – if you expect your spouse to be an angel and found out that there is a bit of the devil in them, you get upset – however if you understand that both you and your spouse have some of God and some of the devil, some selflessness and some selfishness (and without some selfishness you couldn’t survive) – the same is true of our expectation of government leaders