You shot who in the what now?

What we do know is that the 40 hour workweek went by the wayside during the war. The US, for example, mandated a minimum wartime workweek of 48 hours in 1943. It would be quite reasonable to conclude that Hitler would have won if labor didn't take the loss. Presumably that is what you are expressing?

I guess what you're struggling to get out is that those sayings were true and thus became adopted as common knowledge? It is the case that people stop talking about things that are already commonly accepted. If it weren't that way we'd be sitting around talking about 1+1=2 all day, every day. It still remains unclear what you think that adds to the discussion, though.