Secondly it would stop countries from exploiting their mass labor pools and eco systems and it would force the spread of power and wealth among many nations.
Thirdly it would cause a more spread of power sharing as instead of a bi polar or 8 polar system we could have a proper spread of all countries own resources and having a small piece of the pie.
Fourthly, it would stop wars. This is because there would be no more a possibility for any single entity to think they could take the world over through owning the market place through a monopoly. Meaning more couperations trading and growth of markets for all.