Iron Man will be more famous, that's true. The Preschool Teacher action figure or 3D movie won't be in your future, but you will spend every single weekday (for only 10 months out of the year in most cases) with a roomful of tiny humans who look up to you. You are very, very famous to them, even if they won't remember your name a few months after they've moved on. They will remember your smiles, your hugs, your laughter, and those lovely, quiet times when you read to them. We remember and cherish those memories.
So yeah, famous? Not so much. Your knowledge, skills, and worth? Unforgettable.