Hitler wasn't elected, he was appointed. Which doesn't take away from your point, but it's really astonishing how such easy to correct falsehoods about such a deeply important subject just linger on and get repeated.
https://en.wikipedia.org/wiki/German_presidential_election,_...
The Nazis lied and cheated and murdered their way to power, make no mistake about it. And that was kind of like an onion, too, in that every layer of the Nazi apparatus deceived lower layers.
Apart from the intrinsic importance of things like poverty and unemployment simply because they hurt people no matter how people to react to it, what turned some people into sociopaths (and why it didn't others) is useful to know to prevent more coming into existence, and to leave the ones who aren't beyond the point of return a way out -- but it's also a destructive red herring when dealing with those who are beyond the point of return. They are eating chalk and holding up people who delivered themselves as hostages unto them, so you can have empathy they can only feign and use; and the question is, at what point does the tragedy of their hostages outweigh the tragedy of who they and their hostages will trample on, forever, if given half a chance.
I know it's cold and kind of heartless, but for many people who turns abuser after having been abused, you will also find those who have been abused even more, but did not turn to abusing others. It's not either person's fault or credit, but I can't cater to the first while ignoring the second. Insofar it's a zero-sum choice (and that's not generally the case, mind you, but it's also not never the case), I made my choice. Sometimes, the wheel that squeaks the loudest shouldn't get the grease, but simply should get replaced by a better or even no wheel.