Although Iago certainly plays a major role in the play as the villain, the main plot of the play emanates around Othello as changes occur.The audiences sympathize with Othello throughout his heroic rise and tragic fall, thus proving him as the main character of the play.
This action triggers anger in Iago, and he takes out his anger on his boss Othello.
Iago desires to destroy Othello's life and marriage even if others are harmed in the process.
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Eventually, it becomes clear that Iago has no real motives for hurting Othello and his character appears to be a vice figure, a stock character who personifies immoral behavior by tempting others.
Iago is confident in his ability to manipulate others.Some people might use this type of situation to challenge themselves to reach their goals, while others might decide to destroy the person they believe stands in their way.In William Shakespeare's play Othello, Iago is a soldier with hopes of being promoted to lieutenant.He is a manipulative man who develops a plan to destroy the lives of those he feels have wronged him.Iago is upset about not being promoted and seeks revenge on his boss, Othello, and the man who took the job he wanted, Cassio.He becomes angry and vengeful when he is passed over for promotion.A less experienced soldier, Cassio, is promoted to lieutenant instead of Iago.He states, 'it is thought abroad that 'twixt my sheets, he has done my office' (Act I Scene III, lines 369-370).He also mentions having a desire for Desdemona because he wants to seek revenge on Othello, 'wife for wife' (Act II, Scene II, lines 286). He is from a land that Venetians consider exotic and mysterious, he has had unique adventures, and his military accomplishments far exceed those of the men around him.The most visible indicator of his outsider status is also the one that provokes the most poisonous responses: Othello is a black man in white Venice.