Interesting psychology experiment has shown that people are less likely to help others if they are made to think about money! (“The Psychological Consequences of Money,” Kathleen D. Vohs, Nicole L. Mead, Miranda R. Goode, Science, November 17, 2006.) Stanford GSB professor, Jennifer Aaker, comes to a similar conclusion as seen in her 2008 paper, The Happiness of Giving: The Time-Ask Effect.
(via Stanford social innovation review)