You're seeing pushback from the other posters about the term "primitive" which is inherently a value judgment. It's generally a term that's not used in history when talking about cultures. It will sometimes be used to talk about specific technologies in relation to one and other. It's usually used in the sense that some technology were a primitive version of another technology, like roman numerals being a more primitive system than a number system that has the concept of zero.

B/c of that, and the way cultures evolve, every society will have systems that are more or less advanced than other systems. While the US may have the more advanced cruise missile systems in the world, our health care system is a target of mockery for large sections of the rest of the world.

And often the system that's seen as primitive is actually too advanced for the judging group to understand. A good example is the Conquistador's impression of Tenochtitlan's system of hydro-logical urban planning. They tore it apart and to this day Mexico City has problems with flooding and water shortages b/c of a lack of understanding of the valley's hydrology.