The point is that if John Lennon was borne today he (or if Jean, she..) would make great music. You might never hear it because of "the industry" but John, or Jean, would be out there somewhere doing ingenious things with melodies that no one else would have.

You can't stop people like that, the same is true for programming, if it's your thing you'll do it. If not.. you won't, you'll be a session musician, and every tune you hear (or function you see) you will be able to say "I could of written that" but you didn't.