Here is an interesting question.
I've been subscribed to a guy on youtube called Nutnfancy. Yes he's American, but he speaks with the intelligence of a Brit.
It's a long video, but the basic story is that most sheeple will be scared and not able to fend for themselves. Something I'm sure many of us will agree with.
He then goes on to talk about protecting those around you and that some people have a natural dendency to help others. Those are the Sheepdogs of society.
It's a really worth while video to listen to. It lives up to it's name, nothing fancy, but it's still really worth the time.
http://www.youtube.com/watch?v=OW8BZ7pRt28