Yeah, people forget that IP is a social construct, and there's no reason a different society can't simply have different constructs. Open source / Free software is a different social construct too; and Stallman would have us live in a world where nobody is enriching themselves with proprietary technology they exert unfair control over.

Problem has always been ensuring that people who have brilliant ideas get appropriately rewarded for their contribution to humanity - but not disproportionately.