The olny thing Macbeth is concerned with is power. Macbeth is the star of the play, the whole story is focused around his rise and fall from power. He, more than anyone displays the idea that people only do what they do to benefit and further themselves. He doesn't kill king Duncan because he thinks that it is for the better good of Scotland, he does it for his own personal gain. Then when he becomes king, he continues to cause the deaths of those around him in fear of losing his newly acquired power. This shows how the power changed him into somthing that he never wanted to become, consumed by his own greed. “The power of man, for none of woman born shall harm Macbeth” (4.1.91-92) He even goes to the witches looking for ways to preserve the power and when the tell him that he is practically invincible he goes mad with his power. Even when his wife commits suicide he is still set on repelling the attacking forces of Malcolm and MacDuff. When the opposing forces finally do arrive he boasts to all that oppose them and slay them malevolently. He does not defend his castle because he loves his people, he knows that they are not fond of him, he does it because he wants to preserve his power.
The olny thing Macbeth is concerned with is power. Macbeth is the star of the play, the whole story is focused around his rise and fall from power. He, more than anyone displays the idea that people only do what they do to benefit and further themselves. He doesn't kill king Duncan because he thinks that it is for the better good of Scotland, he does it for his own personal gain. Then when he becomes king, he continues to cause the deaths of those around him in fear of losing his newly acquired power. This shows how the power changed him into somthing that he never wanted to become, consumed by his own greed. “The power of man, for none of woman born shall harm Macbeth” (4.1.91-92) He even goes to the witches looking for ways to preserve the power and when the tell him that he is practically invincible he goes mad with his power. Even when his wife commits suicide he is still set on repelling the attacking forces of Malcolm and MacDuff. When the opposing forces finally do arrive he boasts to all that oppose them and slay them malevolently. He does not defend his castle because he loves his people, he knows that they are not fond of him, he does it because he wants to preserve his power.