Naruto and Sasuke are one entity. They fought together, won together, "died" almost together and met Hagoromo Ōtsutsuki, the Sage of the Six Paths....almost together. Like Heaven and Earth, if we talk about one of them, we should consider the other one too. That's the way Naruto and Sasuke have been portrayed by the author during the war-arc.
Together they will kick Madaras ass, without any scruples.