(As backdrop, the 経済連、経済交友会 and 日商工 are the three largest business lobbying organizations in Japan according to the Manga. And 日商工 is the oldest.)
My question: what does でも mean here? でも usually have three meanings:- 1) but 2) even including and 3) among other things. But でも here does not seem to fit in any of the above meanings.