Do you know Bruce Davidson? He did some pretty spectacular humanistic/sociological photography in US ghettos using a view camera. 1970s. A quote: (retranslated by me into English from a book with a Czech translation of his original quote, so excuse the language inefficiencies please)
"The photographer is seen, he is exposed. He doesn't hide behind the lens, in order to secretly capture everything around him and get away unseen. The reality of putting up a tripod, attaching a big camera and asking the people if I can photograph them means, that there is an open, honest communication between the photographer and his object, from eyes to eyes. Photography means colaborating - and a celebration. And when you have the difficuly prepared photo finished, you see the moment as a special occassion." He is a Magnum member, BTW. To those not knowing him, I can only reccommend. Best regards, Frantisek Vlcek