I don't see things the way he does. Neither do you. A writer is a trained observer who shares truths no one else is privy to through her interpretation of events, either witnessed or imagined. When writers give up on our stories, we deny everyone the chance to hear what we have noticed about the world. In our fiction.
Revision is one tool for uncovering that truth.
Revision has made me a better writer, maybe a better person. I need never give up on stories I love, that change is always possible, and can turn things around for the better.