Is your end goal to create singular robot that can perform all varieties of surgery? I never understood that to have been the design intent of the Davinci. My assumption was that the development of care using such a robot would eventually provide the invaluable resource of expert surgical care irrespective of you local. Who cares if it takes a specific robot to do each specific surgery? (Being fastidious here) But Fill the room with 100 robots and still all you have to do is save 1 Jeff Bezos, 1 bill gates, 1 Warren Buffett, 1 Elon musk and the it’s a net positive to the gdp.