I already explained this in the OP.
"Because somebody had to have control over surplus food, it became necessary to divide society into roles that supported this hierarchy. The roles of an administrator, a servant, a priest, and a soldier were invented. The soldier was especially important because agriculture was so unsustainable compared to hunting and gathering. The fickleness of agriculture ironically encouraged more migration into neighboring lands in search of more resources and warfare with neighboring groups. Capturing slaves was also important since farming was hard work, and more people were working in these new roles."
Patriarchy is great for building or acquiring things from others but it comes at a high cost to most people.
"This division of labor and social inequality had very real consequences. For instance, while the majority of people had disastrous health compared to their hunter-gatherer ancestors, the skeletons of Mycenean royalty had better teeth and were three inches taller than their subjects. Chilean mummies from A.D. 1000 had a fourfold lower rate of bone lesions caused by disease than commoners.”
Here’s more about all of that:
“It is this Nordic invasion (rather than the invention of agriculture alone) that resulted in mankind becoming chained to a system that could build the Pyramids and many other monuments to central authority, far too numerous to count; but could not free the vast majority from lives of poverty and want.”
