In my humble opinion, quoting Hollywood movies detracts from any conversation about historical facts or about causal relationships even if the conversation starts with a rationality quote.

Moreover, none of the opinions I have seen as to the purpose of Rationality Quotes entails a rhetorical free-for-all. An example of an opinion that I recall is that a quote is an attempt to communicate some aspect of the art of human rationality in much fewer words than would be required by the standard expository rationalist style. The quote from the Hollywood movie does not have that property because the quoter could have written instead, "it is well documented that many German industrialists profited greatly from the war," which of course is fewer words than the quote from the movie and which of course is standard expository style (no rhetoric).

I have nothing personal against the quoter (Tom) and I believe and I hope that I would have voiced the same objection if anyone here had used that particular rhetorical tactic.