Canelo will not gain anything or lose anything from fighting Benavidez.

Despite popular belief in this group, Benavidez hasn't accomplished anything. He's lost the 168 belt twice because of his own irresponsibility. He's fought subpar competition. His most noteworthy win is against Plant who he couldn't KO. Andrade was a 40 year old prospect, who had never ever been in the ring with any former or current champion in his entire career. My bold prediction is that Benavidez will lose at 175 and will never be heard from again. If Canelo fights him, he'll just be a random name in a long list of victories.