I understand the frustration of people making minimum wage, but the bottom line is that people are paid based on demand for their skills.
Anyone can sweep sidewalks or make burgers and fries or operate a Disney ride, so those positions aren't paid much.
Very few people have the skills and experience to successfully run a huge, complex, global corporation, so those who are able to do it are paid very highly.
Is Iger's compensation excessive?
I guess it depends on how you look at it. From a company perspective, they are going to pay him what they think he's worth to the company.
Under Iger's leadership, Disney's revenue was up 5% to 38 billion and their net income was up 20% to 4 billion. So one could argue that Iger's leadership helped bring in an extra 700 million in net income last year.