One might recall several American big businesses were quite OK with trading with Germany before and during the start of WWII. Only our entry dampened down their enthusiasm. Nasty history there.
Money talks, what else is new? So you are shocked now?
Roman senators did business with Carthage during the second Punic War. IIRC, it didn't turn out that well for them in the end, but goes to show that some elites always think they're above the fray.
" La rose est sans pourquoi, elle fleurit parce qu’elle fleurit ; Elle n’a souci d’elle-même, ne demande pas si on la voit. » Angelus Silesius
"There are problems in this universe for which there are no answers." Paul Muad'dib