Erich Fromm in his The Sane Society (1955) argued that mental health should not be defined merely in terms of the person's harmony with his/her society. He believed that a society, as a whole, could be mentally ill. He said that all humans share a common human nature, with which some cultures are not in accordance.
Maybe that's the cause of the collapse of some civilizations in the past.
One big problem here is the complexity of human brain and human life which make predictions difficult. For example, in the 60s and the 70s a sexual revolution occurred in western countries. Psychologists today consider some sexual behaviors normal/healthy which were traditionally discouraged. But in comparison with the age of human civilization on earth, these changes in norms are very recent experiments, about the results of which we may not be able to be sure.
We can see the same problem in economics, which is, in some sense, based on psychology. As an example, since the 80s neoliberalism has been the predominant economic theory in western countries, but now some big names in economics state that it is a failed experiment, causing many problems like deep inequality and the rise of populism.