The «moral influence theory» is so named because it appears to stress the «power of example». (religion-online.org)
We oppose religion not merely as a set of theological ideas; but we must also oppose religion as a political, social and moral influence detrimental to the welfare of humanity. (goodreads.com)
It is also likely that Bible literacy has a spiritual and moral influence on young people that conduces to their doing better in school. (firstthings.com)