Justice, rules of law, democracy & liberty are human attempts to transcend our urge to go back to the our instinctive root of biological pecking order and tribal governance.
This is why millions of people across the world and ages had rationalized their ways back again and again to fascism, socialism, communism, Islamic revolution and dictatorship, all with seemingly good reasons at the time. All ends in tragedy.
Yet any form of collectivism or authoritarian systems, however seemingly enlighten, is never capable of handling mass society and economy as proven by history again and again, hence, such tribal dream always collapse. Therefore, uninformed good intensions inevitably lead to public misery.
Hayek seems to be saying this from the early twentieth century, not many really listen, then & now. Tribal instinct is proven too irresistible a drive.