Sheep - Sheepdog - Wolf

Borrowed from Col. Grossman's analogy in his book "On Killing."

What makes us either sheep (ordinary folks), sheepdogs (soldiers, firemen, police, prison guards, etc.), or wolves (criminals, predators, rapist, etc.)?

There seems to be perceived influences or labels put on those who become wolves so what makes a person a wolf? Some say it happens in child hood yet in the book, "The Gift of Fear," the author alludes to the fact that we all are the same but something occurs that causes us to go to one of the three categories.

It would seem, from my view so far, that regardless of the influences in childhood something else causes us to go one way or another. In the book on fear both the author and some of his examples had the same type of childhood experiences yet he became a force for service to society while the other became a predator.

Is it some genetic thing that says to a person who suffers great things that they end up becoming someone who contributes to society or causes them to go the other direction and become a bad thing in society?

Then again what can cause someone to be a little of all three, a sheep, a sheepdog and a wolf? Are there folks like this who run the middle of the road so to speak?

What are you and what caused you to go the way you go? If you can answer that question are you truthful to yourself or is it just the "story" we all seem to tell ourselves as each event occurs in life causing us to change so we remain comfortable in our skins?

I was a Marine. Does this mean I was a sheepdog? I have had thoughts of doing things that are not acceptable in our society, does this mean I am a wolf? I am also one who has stood by and had no reaction, does this mean I am a sheep? Which one at any one time says I am what I am?

I taught karate and self-defense. Am I a sheepdog? Is this why I study karate and the ancient classics (Kenpo Gokui - I Ching - Bubishi - The Mysteries) not to exclude the recent books on fighting and self-defense, to achieve some level of all three or to become more of a sheepdog than the other two?

Do we need to be a bit of the wolf to be a good sheepdog? Is this why we attach the philosophical aspects to our training through the study of the Kenpo Gokui. Do we know the differences?