BECAUSE he is better educated, better trained, has a higher skill level and more experience. Which is the point. Income is a measure of value. Something that is, again, impossible to pretend otherwise.The pilot is just in a better position to negotiate for economic gain. Income is a very poor measure of personal or moral value.
To her Wall Street owners: Hillary Clinton: “But if everybody's watching, you know, all of the back room discussions and the deals, you know, then people get a little nervous, to say the least. so, you need both a public and a private position.” - Hillary Clinton: "I'm kind of far removed from the struggles of the Middle Class"
Lots of highly skilled people make low wages. Like musicians, who often can only find "free" work, or who only get paid tips. But they still do it, because they love to.