@Azure I feel like you may be misinterpreting LeVey on this one.. It isnt suggesting just because someone steps on your toe you destroy their whole life. You respond as much as is needed in order to protect yourself from the person. Its all about self-autonomy not about revenge.
With that said I do agree with you that I dont subscribe to LeVey Satanism either. But i don't see it as evil as the name tends to suggest either.