Regarding a Post Sapient Economics by Robert Locke:
Sapient indeed. Sapient as in integrative and Wise. What is needed is an integration of both of the mindsets you refer to. An integration that simultaneously informs abstractly and philosophically and, aligned with that philosophy, crafts and implements policies that, looking directly at the actual operations of commerce and their economic and monetary significance, then makes those policies work effectively and beneficially for virtually all agents.