Well Mr Happy, most would define it as a person who takes great personal risk for the benefit of others.
I see what you are saying.
Just getting injured, however badly, does not make you a hero.
True, these people accepted a dangerous job for less than they would get as a traffic warden.
True they faced terrible dangers every day in theatre.
But maybe, when the rounds were ripping through their flesh, they felt terror and despair.
Or when the awful violence of the IED flung them off the ground, maybe they cried out for their mothers.
Pathetic wimps.
Who would want to help them?
Not you Mr. Happy. Right?
What is the bravest thing you have ever done Mr Happy?

BOO!
Sorry Mr Happy
Have I given you an unheroic cleaning up job to do?
Wear your poppy with pride mate.