That would be cool, seeing someone like Law as a goal to be the WSS with his df. I think Oda missed his chance with Zoro having rivals that want to reach his dream. I think he tried in Marineford with Vista, but it felt a little forced. Shit even Luffy dream seem like everyone kinda given up on that. Maybe Oda is saying both of their dreams is unattainable so why even bother, you know? Luffy and Zoro was born with this, "idgaf" attitude and are determine to achieve their unattainable dream while everyone else bent the knee or given up.