I always wonder why people have separated Graphical Fidelity with Game Performance in their minds. Since Graphics represent not only things looking good but behaving appropriate when manipulated by the player. In that respect David Cage is right, creating emotive visceral experiences does become better as those experiences gain in tech because it frees developers from having to cut corners because the machine can not handle this or that. It is like way back in 07 when Crysis and Stalker came out and there were things built into those games for DX10 that could not be normalized because the game had to allow people with DX9 to play.
Graphics begin to really affect performance when consoles switch out because it creates a standard and a bar at which everyone has the same machine and thus nothing has to be cut out for the curve.