Macbeth's Nobility Analysis

I do not believe that Macbeth restored any of his nobility by the end of the book. If anything, I think he lost more of his nobility by the end of the book. Macbeth had become very overconfident by this point and it showed quite a bit during the couple of battles he had. You can see this when he is fighting Macduff, telling him that "You're wasting your strength. You'd find it just as easy to damage the intangible air with your sword as to make me bleed." (V.VIII.11-13) He doesn't believe that any man could possibly harm him and thinks that he can easily defeat Macduff in this battle. During an earlier battle, it still showed and he had killed the boy without so much of a second thought about it. Macbeth no longer cares about what happens to