Heroes don't run away from fights that they might find themselves in, simply because they know that they cannot win. That's what makes them heroes, and what really distinguishes them from everyone else.
Is it a narrow view of heroism? Perhaps... but I don't think that everybody is cut out to actually *be* a hero. In fact, most aren't.
That doesn't mean that every single person is not capable of doing tremendous good, or making a positive difference in the world around them, however.
But running away is just not something I can associate with heroism.