Well, obviously? Nietzsche figured that out a century and a half ago. Healthy/Unhealthy would be a better binary, but I’m sure that would run that to its own set if problems as well, depending on who is determining them. At least they would be more observable and more in line with scientific thought. Good and evil are of course, far foo vague and difficult to pinpoint. You could even go Bonhoeffer’s route and do a smart/stupid binary 🙃