Usually Evil results from actions that completely and utterly take away from someone..particularly an individual who lives in this 'perfect' world.
So the genesis of Evil is actually Good.
Having lost faith in such a perfectly good system the individual starts to learn that being evil grants instant gratification for none other than his/herself.
This only encourages the evil behavior...and it grows and grows. With this growth often comes power wether it be political or physical or what have you.
With that power attained they may continue on their evil march of self preservation until they are either presented with the opportunity to be a part of something greater even then themselves, or they come up with a grand scheme to ensure that never again shall they ever be deprived of what they are so destined to achieve.
Makes sense to me anyway
