The characters are, by their nature, archetypes that can serve different metaphors.
The metaphors exist for the stories.
I'm a writer. I just love telling stories.
At one point, I worked up a list of five requirements for a superhero: superpowers, a costume, a code name, a mission, and a milieu. If the character had three out of the five, they were a superhero. But that's just my definition.
I like superheroes. I like the drama of it, the stirring, larger-than-life aspect.
I think the purpose of deconstruction is to take something apart and see how it works. If you're not going to put it back together again and watch it go, what's the point?