Hi, thanks for the comment.
Like they say. It takes whole village to raise the child.
Greed is not innate. It is conditioned behaviour by the environment. Same as jealousy, compassion, altruism, prejudice, aggression, etc.
All systems up to now have had greed because, they have been designed around money (or barter) with scarcity.
I recommend the book (e-book for example) "The Best That Money Can't Buy" by The Venus Project. Although you can probably download older, shorter versions for free around.
Or check up @thevenusproject blog