Most people, however, do not commit murder. She and her home serve as contrasts to Lady Macbeth and the hellish world of Inverness.
Duncan is the model of a virtuous, benevolent, and farsighted ruler.
However, by Act III, Scene 2, Macbeth has resolved himself into a far more stereotypical villain and asserts his manliness over that of his wife. His boldness and impression of personal invincibility mark him out for a tragic fall.
How much of a push Macbeth needed to turn to murder is not clear. Their predictions prompt him to murder Duncan, to order the deaths of Banquo and his son, and to blindly believe in his own immortality. But just like any other marriage, they each had their own flaws.
He is a man controlled by forces both within and outside of himself.
The scene in her castle provides our only glimpse of a domestic realm other than that of Macbeth and Lady Macbeth. He is shown with high regards throughout the play, many people can identify with him, and lastly, his own faults lead to his downfall This feature of his personality is well presented in Act IV, Scene 1, when he revisits the Witches of his own accord.
He is hubris, as well as an opportunist.