I spent so much time studying, going to classes, completing essays... I like to think Ringo eventually turned his life around and went to college. Still, you can see he's attached to his meaningless, directionless habits while trying to deny reality (like when he tries morally justify stealing from people he knocked out as if it was part of some honorable code of war. He's glorifying this empty way of life). It's hard to become a new person if you're stuck trying to pursue a fake, idealized world. There was a bug during the last sequence that made the soundtrack completely silent, but I think it helped emphasize just how empty his entire existence has become. He's an empty man, abandoned after everyone around him grew out of an outdated mindset.