Compare the "voice of another" with a recently observed and measured social contagion at work -"Monks, there are these two conditions for the arising of wrong view. Which two? The voice of another and inappropriate attention. These are the two conditions for the arising of wrong view."
"Monks, there are these two conditions for the arising of right view. Which two? The voice of another and appropriate attention. These are the two conditions for the arising of right view."
http://www.accesstoinsight.org/tipitaka ... .than.html
http://www.dailymail.co.uk/sciencetech/ ... ction.html
http://www.bbc.co.uk/news/science-environment-22957099
What other social contagions are at work?