Because of an inequality of values, both the buyer and seller gain in every transaction. The only exception to this law is when fraud or deception is involved. When that happens, one party gains at the other's expense. But in a voluntary exchange, where full and honest information is revealed, everyone benefits. Not so fast, Charley.
Capitalism is also a highly cooperative system.
That's the true essence of capitalism. Granted, natural resources are limited. But the beauty of free enterprise is its ability to multiply these resources into goods and services that people can use to increase their standard of living. What really matters is not so much the amount of resources in their natural state but the supply of economically usable natural resources, which are limited only to the extent of our know-how and physical ability to transform these inputs into usable wealth. In that sense, there is virtually no limit to further advances in our standard of living.