(Dominic 34). Which leads Macbeth to become less then a man like a baited bear.Lady Macbeth's ambition is important to the play because it causes Macbeth to change and kill Duncan and Banquo and make Macbeth a Tragedy. Her ambition is a major theme of Macbeth and William Shakespeare uses it to show how Macbeth was a weak man and not the hero that was the historical Macbeth. Shakespeare uses Lady's ambition to make as a fatal downfall for both Lady Macbeth and Macbeth. Some critics blame, "Lady Macbeth for precipitating Macbeth's moral decline and ultimate downfall" (Dominic 34).Macbeth's characteristics and flaws cause him to be effect by Lady Macbeth. Macbeth changes during the play causing the play Macbeth to change as Lady Macbeth's ambition effects Macbeth. In fact, Lady Macbeth seeks to be equal with men and indeed has ambition. Lady Macbeth's ambition is caused by her flaws and characteristics. Her relationship to Macbeth causes her ambition to change Macbeth. Thus, Lady Macbeth's ambition causes Macbeth's tragic downfall....