Just so everyone here is clear, if he actually gets elected and introduces a salary ratio where the highest paid cannot be paid a certain amount more than the lowest paid, lots of companies are going to stop operating in this country.
On the other point about dividends, people are paid what they are worth. If someone is paid the minimum wage it is because they are not worth more money. If an executive is paid millions a year, that is because they are worth that much money (see apples stocks when Steve Jobs died, or Microsoft's when they replaced their CEO)