Prove it? please provide me with a single example of infinite resources that a single person owns but still attempts to take it from others. You can't. Even the richest people in the world have limitations to what they can actually afford. Yeah, some guys can only afford that 100ft yacht, which is what makes that 200ft yacht cooler for the guy who can. If we could all have 200ft yachts then most people would probably go with something closer to what they needed. You are using established greed and projecting it onto a level of production we have never experienced and assuming it will be the same. Every point you make is based entirely around limited resources, yet you're modded insightful? Resources being scarce is why executives want to make more money, and make you pay more for the goods. You keep spending large sums, giving them more money and you less.
Take a few steps back from the situation and follow all the greed of today, and you'll follow it back to limited resources. Land, food, water, etc. Now, picture a world where land, and every possession you could ever imagine is free. No wait period, no money, nothing. How does that not have a profound effect? Some people will still be gluttonous regarding specific things, but their greed no longer impacts anyone but themselves. I think those that are truly greedy will always seek power, and they will attempt to claw their way to the top of whatever political structure we have in place. Influence will become the new limited resource.