IO540,
This has nothing to do with sorting men from sheep or anything similar. It's proving to students that in good VFR conditions they can fly without instruments, purely with reference to the outside world, and fly well. Certainly in helicopters, many don't believe it - and I know f/w pilots are the same. They chase the instruments, and fiddle about with the controls all over the place since the instruments lag, and if you can finally get them to look out the window and trust themselves, they find that it works and they CAN do it.
Of course there is a time and place for using the instruments, but not all the time, and to the exclusion of looking outside.