Tyrants are control-oriented people and expect to control those around them. Some leaders turn into tyrants due to insecurity and the commitment to maintain their power. In the process they become even more oppressive. In the beginning of the play, Macbeth is a regular soldier fighting for his king in the battlefield. When he manages to kill Macdownland he is given two new titles. After catching a glimpse of what power feels like he begins to crave more. This craving transforms Macbeth in irreversible ways such as becoming a murderer. Once a person becomes obsessive and a murderer, he can do anything for power's sake.
Macbeth begins as an ambitious soldier, and his ambition makes him turn into a bloody tyrant. For instance he states, "To be thus is nothing, but to be safely thus" (Act 3, Scene 1) which means "To be the king is nothing if I'm not safe as the king." Later on he says, "I am in blood, stepped in so far that, should I wade no more, returning were as tedious as go o'er" (Act 3, Scene 4). This scenes demonstrate that he continues to assassinate whomever he thinks is a threat to ensure the safety of his kingship. The main reason behind this is his overambition and insecurity. His gluttony makes him paranoid, which eventually makes him commit murders. Therefore an outstanding soldier turns into a tyrant and a murderer due to his paranoia and inner evil motivation. .
The blindness and ignorance of Macbeth was the initial step of his transformation into a tyrant. For instance, Macbeth seriously considers the utterances made by the witches while Banquo rather states, "The instruments of darkness tell us truths/ Win us with honest trifls, to betray's/ in deepest consequence." (Act 1, Scene 3) as a response to Macbeth when he was asked, "Do you not hope your children shall be kings.?" (Act 1, scene 3). This scene demonstrates that Banquo acts suspiciously towards the prophecies the witches tell while Macbeth lets himself be blinded by them.