Science studies what's at the edge of understanding, and what's at the edge of understanding is usually fairly simple. And it rarely reaches human affairs. Human affairs are way too complicated. In fact even understanding insects is an extremely complicated problem in the sciences. So the actual sciences tell us virtually nothing about human affairs.
Noam Chomsky, in Science in the Dock, Discussion with Noam Chomsky, Lawrence Krauss & Sean M. Carroll (2011)