Differences between salaries of executives and other workers!

It is interesting to note that the salaries of senior management of companies are very much higher than those of other functionaries of the same organization. It is understandable that people with higher qualifications and experience should receive more than others. However, how can we explain the fact that some executives make $ 20 million a year while other workers in the same organization receive an average of $60,000. The main explanation for this discrepancy is that executives bring more value to the organization than others. Although this is true, it is important to remember that those at the bottom carry out the execution stage. In my opinion, I think it will be a good idea for organizations to establish a ratio between the salaries of executives and junior staff. What do you think? I will like to have your input!