Maybe Sundar is better at negotiating his salary than Satya? Can't think of any other logical reason
-Satya Nadella
You don’t get what you deserve. Often you don’t get what you ask for. You get only what you demand through persistent and effective negotiation.
This is true for a lot of things in life, but it is particularly true for engineering salary.
If your point was, perhaps his salary is so “low” because he actually believes what he said then you may be on to something.