I guess until something like that happens directly to you, it never gets the attention it deserves. What is disturbing for me is that private corporations do it too like you had written. I went up to Standing Rock last fall for a bit and saw private corporations not only using eminent domain, but then witnessed the deployment of oil police/soldiers (couldn't tell which if you know what I mean) to suppress the opposition.
I hope this post makes up some of the difference for you :)