Othello Monstars

For my post, I would like to focus on a small line said by Iago in the first scene that could be a possible set up for the entire play. "Were I the Moor, I would not be Iago. In following him, I follow but myself,"(1.1 54-55). By the way we see Iago act in the rest of act one, it is safe to say that this may be a pattern throughout the play as a whole. Iago wants to gain complete manipulative control over Othello. We see at the end of act 1 that he is already planning to intervene in Othello's life and take control, "If thou canst cuckold him, thou dost thyself a pleasure, me a sport,"(1.3 362-364). What motive does Iago have to try to manipulate Othello? Why does he want to not only ruin this man's professional life but also his personal life?