Hess was a German war hero in WW I and a German patriot.
Unfortunatly he also signed the Nuremberg Laws which eventually led to the incineration of millions of Jews.
I don't think that was his intent, but that was the outcome.
He was awarded the Iron Cross.
I've read Mein Kampf a couple of times. Uneven quality but it reflected the zeitgeist as well as helped drive it. Touches of badly misplaced resentment over the outcome of WWI - his "November criminals" were, after all, no more than the civilians left holding the bag when the Kaiser, Hindenburg, and Ludendorff skipped town. Overlaying that, a monstrous and pathological ego, pure paranoia, and a monomaniacal hatred of the Jews who were simultaneously supposed to be in charge of conspiratorial capitalism and Bolshevism, a pretty neat trick if you think about it. It's a real insight into interbellum Germany, invaluable for the student if a bit of a slog. It is curious that so few political leaders of the time - Chamberlain, especially, and Ciano and the entire French diplomatic establishment - could have missed Hitler's clearly stated intentions to strike east for lebensraum. Whatever else, we can't say they weren't warned.
It is also the tantrum of a child lost in its own fantasy world. Hitler conflates his own personal trials with those of his nation, the act of a narcissistic fool. Except for his army service he never once held an honest job in his life. There are a number of American politicians of whom one might say the same.