History was made recently when NPR offered words of praise for Wal-Mart.  Don Boudreaux poses a good follow-up question to the article:
...when you and your neighbors are homeless, hungry, and thirsty following a natural disaster, would you prefer to rely upon the devotion to public service that allegedly motivates FEMA workers, or to rely upon the devotion to their own self-interests that undoubtedly motivates executives, workers, and suppliers of private companies such as Wal-Mart and Home Depot?
 See also: "Giving Back."

via Café Hayek