It's not a good comparison. You can also say that a PhD doesn't help you at all to be a fast food worker.
For a given profession, if you're looking to hire an entry level person at an entry level salary, and someone applies who has decades of experience in that profession, it makes a difficult situation for the organization. When it's time for raises, how do you fairly compare that person to the actual entry level people? If the person could legitimately get double their salary, are they going to stay on your team for the lower salary? Stuff like that makes it problematic.