Ambition can have a destructive quality that serves to destroy an individual’s life, or it can have an affirmative quality that serves to save that individual’s life. To what extent is this statement true?

Destructive quality and Affirmative quality

Ambition can have a destructive quality that serves to destroy an individual’s life, or it can have an affirmative quality that serves to save that individual’s life. To what extent is this statement true?

Answer this question using the specified protagonists from each of the following texts: Macbeth from Macbeth, Jay Gatsby from The Great Gatsby, and Willy Loman from Death of a Salesman.