Iago's deception in Act 1

Act 1: Thoughts on Iago
Iago is easily seen as the villain of his play due to his deception and manipulation. It is interesting how many enemies he has but most of them see him as a friend. He seems conceded and is defiantly one to only think about him. It is clear his hatred towards Othello stems from Othello overseeing Iago and giving the lieutenant promotion to someone else. Besides that in the first act there is no explicit reason for Iago’s cold-hearted personality. Iago goes through all the trouble to impart revenge on other characters for his own benefit. In the be first scene of the play Iago stirs up the pot by telling Rodrigo to go running to Brabanzio to tell him his daughter was secretly wed to Othello. Iago is deceiving because he is constantly plotting by giving his so-called advice to other characters but in reality he is creating a mess. This tactic he uses creates damage to other characters but since he is only making accusations and speculations rather than explicitly doing the dirty work the other characters do not see the villain he really is. A question to pose is what is the driving force of Iago’s villainy? Besides of his lower rank in the military he should be happy since he is married and seems to hold an average position in society. Iago seems damaged because he does speculate the idea that his wife is cheating on him. In his soliloquy he expresses his scheme of cheating Rodrigo out of his money. If Rodrgio and Iago were true friends Rodrgio would not have to pay Iago for his advise and plans to win Desdemona’s love. Overall I think Iago’s manipulative motives stems from a power struggle. He is jealous of Othello’s status in the military and wants to be a hero, but instead becomes the opposite as a villain. Iago feels as if he will reach power by creating chaos for everyone one else. Why is Iago such a damaged character and why does he think his wife is cheating on him?