I suppose if you get a PHD, you should be thanking the factory worker that was responsible for the paper in your diploma. Should you also thank Bill Gates for providing the operating system and software that allowed you to write your thesis?
Instead, it's being used as a tactic to cut down anyone that is successful (you didn't earn that success, it was the people around you).
If success were that easy, everyone would be successful..but this just isn't reality.