I generally agree, but I wouldn't call the current structure artificial. That means it was somehow planned by a central artificer to have its current structure.

I generally agree, but I wouldn't call the current structure artificial. That means it was somehow planned by a central artificer to have its current structure. The current social structure is rather the result of a very long and decentralized evolutionary process whereby older ways of doing one specific thing were piecemeal replaced by newer attempts, which then either spread or died off. Of course, vestigal parts remain, and sometimes they cause problems.