As a result, the excess of ambition transformed their feelings into greed. In scene seven Macbeth’s greed is notable when he agrees with the plan Lady Macbeth came up to kill Duncan. Macbeth wants to “have marked with blood those sleepy two / Of his own and use their very daggers” (-87). This quote proves that Macbeths’ feelings have been turned into greed by all of his ambition to gain the throne. Also, Lady Macbeth is so full of greed that she tries to convince Macbeth to follow the plan. For instance, Lady Macbeth tells Macbeth that “screw [his] courage to the sticking place / And we’ll not fail” (-71). This clearly shows the audience that the excess of ambition was so much that greed forced Lady Macbeth to forget about honor and values transforming her into a total different person. Their greed was so great that they became capable of planning a murder against their own guest.
In conclusion, Macbeth and Lady Macbeth should be blamed for excessive ambition even though they were fated to gain the throne because it was they who decided to think and plan the death of Duncan inspired by their greed. They are both to blame because they acted towards the prophecy by doing things that could obviously be avoided. Their excessive ambitions to gain the crown got the best of their emotions and as a result they are guilty for their actions. With what the audience has learned from Macbeth and Lady Macbeth in act one, the audience can interpret that Macbeth and Lady Macbeth are going to kill Duncan and gain the grown but eventually it will be their ambition that will destroy them in the end.