James C. Hefley provides a telling anecdote about the end of cannibalism in one tribe because of Christ. During World War II, on a remote island in the Pacific, an American G.I. met a national who could speak English carrying a Bible.
“The soldier pointed to the Bible and grinned knowingly. ‘We educated people don’t put much faith in that Book anymore,’ he said.
The islander grinned back. ‘Well, it’s a good thing for you that we do,’ he said while patting his stomach, ‘or else, you’d be in here by now.’”
Kennedy, D.J. and Newcombe, J. (2001). What if Jesus Had Never Been Born? [ebook]. Thomas Nelson, Inc, Nashville. Location 479.