Even the SRD says "few people are completely consistent"<br/><br/>But an evil act for one person may be a good act for another.  A guard kills a thief that resists arrest while trying to steal an heirloom from a nobleman who forcefully took it from a poor farmer because he couldn't pay the outlandish taxes that were put in place so he could raise the money to build an orphanage.  Who's the evil one?  The guard and nobleman think it's the thief while the thief and farmer think it's the nobleman.