I think there are quite a few renaissance men left (and some women, too) but they are comfortable with a wrench in their hand (mechanics), planting a garden (agronomy), canning (a little bit chemistry), fixing a busted pipe, etc. as well as some more esoteric profession or passion(s). Will they ever get credit for that?
Unlikely, but most read compulsively, learn all they can about all they can, and often tackle tasks that would have others reaching for the phone (after doing the appropriate research, of course).
They also don't rely on credentials (even if they have them) and as such can speak with virtually anyone who is willing, always scrounging tidbits of practical knowledge with the full understanding that everyone knows more about some thing, no matter how infinitesimal, than they do, and that they can add to their own bag of tricks if they just listen.