That greed is natural, and has always been part of humanity. It is a completely separate issue from capitalism. Capitalism helps direct it in a positive way though.
nature doesn't have materialistic thinking, or money or states, or consumerism, all of which are creations of humans, all of which are part of the brainwashing of the people & society
Animals fight war for territory. Sometimes raid another's territory to steal from them. Rape, murder, war, theft, lies, all seen in the animal kingdom.
Actually, depending on the species, you see basic versions of those things in nature. That said, being creations of humans doesnt make them bad things.