This greed that drove Macbeth made him eager to acquire kingship. In order for Macbeth to become king, he chose to kill Duncan. Macbeth did not deserve to be king if he was immorally willing to kill an innocent man whom he had nothing against. He was not entitled to his kingship. But Macbeth's greediness kept the thought of murdering Duncan lingering in his mind: Present Fears are less than horrible imaginings. My thoughts, whose murder yet is but fantastical, shakes so my single state of man that function is smothered in surmise. This thought of murdering Duncan was tempting to Macbeth. He had only one reason to kill Duncan, and it was his amb