The difference in wages between two people when the work is equal

Question:
Is it permissible for there to be a difference and variation among Muslims in wages, even when the work is equal?

Answer:
Yes, yes, it is permissible. It is permissible for there to be a difference; people are not all the same. One person says, "I will not work for less than this amount," and the other says, "I am willing to work for this amount." It is not said, "No, you must be equal to him." No. If a person has two drivers for one car who drive it, one drives at night and the other during the day, or one works certain hours and the other works other hours, and one says, "I am not your driver for less than this amount," while the other says, "I am not willing to accept less than that," there is nothing wrong with it. This one is given five hundred and that one is given four hundred; there is no blame on him.