Soft Skills

Business schools are focusing on teaching "soft" people skills to potential business leaders.  Law schools are not far behind.  Having read a serious of biographies of great business leaders at the turn of the century recently (Frick,; Carnegie, Ford, J.P. Morgan, Rockefeller), I cannot but help observe that it was not "soft" people skills that made them leaders.  Many were tough nuts.  What all had, however, was discernment at critical points, and strong commitment and drive.  How does one teach discernment (judgment)??