You miss the point. Most every-day Joes aren't test-piloting, model-banging egomaniacs who neglect the vast majority of their families. That GL tried to portray Hal Jordan as an every-day Joe who, oh by the way, is a test pilot who wakes up with models and neglects the vast majority of his family, is the basis of the why I believe the film is pretentious.
You don't see it that way? Fine. But the vast majority of moviegoers decided not to see the film -- to the point where it literally bombed at the box office. And I'm pretty sure that my perspective is at least part of the reason why.
You are making this out to be a bit more serious than it is. The Audience
does not care to find any similarities between themselves and the heroes/villains of a
sci fi action film. All they want is a good, entrtaining, coherent, engaging and flashy piece of movie that'll cheer them up better than the average dull life we all almost lead. Watch First Flight and then also Emerald Warriors to see how a good "Green Lantern" film should be made. Hell, they could have just transferred GL: Secret Origin, with a bit of fat trimmed off, word for word, onto the screen and they'd have had a huge hit in their hands.
Green Lantern the movie was boring, drab, unimaginative and incoherent from beginning to end. Simple reason why it failed.