He is wealthy beyond our dreams yet still wants more, just sheer greed, all seems pointless to me once you reach a certain point financially .
So it's OK for you to have more than the next person, as long as people don't have more than you?
You can be well off enough to be comfortable, or you can be wealthy and leave a legacy behind.
What kind of life could your grandchildren provide for their grandchildren if you were able to leave them £10,000,000 each?
It doesn't necessarily mean expensive toys and lots of big houses. But rather being able to do things that you perhaps weren't able to... Like paying for someone's petrol because they left their card at home, or someone's groceries, or funding a school minibus or a trip to Auschwitz.
You might be able to afford some of that, but you would notice it. And it would be a one off. With wealth you could wake up each morning and do a different thing each day without a care in the world.