Hello shadow_lady,
Tolkien also hated governments. His idea of how things should run are shown in The Lord of the Rings through the Hobbits and the Shire.
You don't just see this 'power' crazy stuff when people want to take over the world, it is in families, friendships etc., Why ? I don't really know. It could be the fear element, it could be not being satisfied with what they have. It could actually be an endless list of things.
From Tolkien's point of view it was more than likely the God and Devil story from the bible. The Devil gets cast out of heaven and then proceeds to try and dominate God's creation, or win it away from him/her.
We see this type of stuff going on today, we saw it 20 years ago and we will no doubt see it in the future. Someone always wants to be top dog, whether a single person in a family or a country in the world.
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