The evolution of philosophy document so well in The Tyranny of Reason by Yuval Levin brought the dream of scientific reason to the social realm, expressed by Hegel that influenced Marx, the communists, and the fascists and to a much lesser extent, the progressives. It is expressed innocently as the arc of history or the right side of history.  Darwin provided the link from science to society, though he should not be held accountable for those who so bastardized his work. The ‘inevitability’ of history provided cover for the most brutal regimes of the last century.