Don't worry about it. Lots of Nazis were spared dying in obscurity in Soviet Siberia by making them advance rocket science for the Aliies - which eventually sent men to the moon, "leap for mankind". Wernher von Braun He killed a lot of British civilians in WWII through his research and development of V2 rockets. But allies…
You shouldn't watch these things with that expectation anyway, they should at least get you thinking about things you wouldn't otherwise have done though. What's interesting about Jones in particular is that pretty much all of his movies are based on well documented facts - articles, news reports, published papers and so…
With a name like Kerkhof, thats not that surprising. Perhaps he was demonstrating the traditional Australian cultural activity of "doing stupid life threatening shit whilst drunk" for the new Citizenship test. He should get free pass for managing to pull it off without getting his arms chewed off.