How is Macbeth good character illustrated when he fulfill the witches prophesies?

Macbeth is not a good character. He is a tragic figure who is led to his downfall by his own ambition and greed. While he does fulfill the witches' prophecies, this does not make him a good person. In fact, it is his willingness to do whatever it takes to achieve his goals, even if it means killing innocent people, that ultimately leads to his downfall.