He's earned every penny. He makes 1,400 times more than average because he's a 1 in 1,400 type of person.

Most of his earnings are also based on his stock equity which is directly based on his performance. Disney had $26B in profits, 7% increase in just one year due to him. He only gets a $3M salary, the rest are bonuses for hitting certain marks. Even so, his total income is only 0.25% of the company's profits, which is peanuts compared to most CEOs (granted he's not a founder, but even so).

Furthermore, splitting that 50% of his salary amongst the 200,000 lower 10% mentioned would give them each an extra $165 for the entire year. She has no idea how payroll or these issues work.