@roundaboutthetown
"if all the world's footballers died tomorrow, there would be loads of people happy to replace them"
Yes, fat, bald men from pubs. Happy to replace and able to replace aren't the same. Plus you'd need all the footballers to die tomorrow before they can be replaced. You aren't getting it, are you.
"the flaw in your argument is that you pretend there is some kind of science behind some people having more market value than others."
There is. The most basic economic theory of supply and demand. Ever wondered why platinum has more market value than air? Or why saffron costs more than mint. Or why electricians are paid more than road sweepers or JK Rowling made a killing or ... well, you get the picture.
I have no idea what you do but I suspect you earn less than a Man U footballer and I bet you're much more easily replaced than Beckham or Ronaldo.
"and a lot just who is the most greedy."
Everyone is greedy. We all try to get as much as we can. It's just some have skills that are worth more.
"so the people making the amazing advances in science are not the ones making the dosh, either, despite the rarity of their skills..."
Yes. You have to monetise a skill to make money from it. Hawking did well as did Dyson. Bill Gates will get by OK.
I guess the ability to monetise is a very valuable skill. I don't have it.
I had an idea for an app about 10 years ago. It would have needed £2.5m investment just to get it off the ground. I even went to the bank and spoke about loans as well as potential private investors. Business isn't my forte so I backed down. The app now exists and the makers are worth a fortune. Such is life.