Heroes?

Heroic movies or fictions have the tendency of focusing on life and death of the so-called "heroes" or the main character. Of course a story gotta have its focus, but I can't help myself thinking about all those "unimportant" characters, which has been shot in the head or blown up. And, it seems that no one else matters at all except the lead character.
How is ones's life more important than another? Why care about one's background, feelings, values or struggle, while all the other people seem to worth nothing at all.
To think a little bit deeper, should that sad security guard whose neck was snapped by the "hero" have a family of his own? What about his wife, his kids, his parents? Does he know he's working for the "bad guy"? Though a story doesn't have the endless paragraphs or chapters to waste on every single character's sad little story, the omission still seems way too rude for the dead. Afterall, those unimportant characters can be anyone of us or people around us and close to us.

Maybe, just maybe, people are too in need of idols or the chance to forget about their sad little lives. With that been said, I am probably just another one of them.