Now that I think about it

Hunting and gathering = primitive communism.
Farming = Feudal aristocracy
Industrialisation = organised labour and representational democracy.

has a bit missing. The bit is capitalism.

Do capitalism and industrialisation go hand in hand? Capitalism is good at moving wealth around and enebling new things to be needed, invented and discovered. This led to industrialisation and the scienetific revolution.

As for conflict, that will exist between who owns the means of production, land or factories and poeple who work there, peasants or workers.