Hierarchy is probably necessary for any society. Tree structures are efficient. But tyranny is inefficient. It's all about ruining the bonds of trust that hold

Hierarchy is probably necessary for any society. Tree structures are efficient. But tyranny is inefficient. It's all about ruining the bonds of trust that hold society and the economy together, just to benefit a small number of people. All your examples are tyrannies. There is a word for people who invoke naive Darwinism to justify tyranny, but it escapes me at the moment.