The top 25 of the 50 most generous philanthropists  on Business Weeks list alone gave over $30 billion to charitable causes from the years 2001-2005, on issues as diverse as spirituality, poetry and Armenian causes. To put that in perspective, $30 billion is the size of the oil industrys profit margin  that the media was recently incensed about. Its also roughly the size of what Congress authorized the federal government to spend on Homeland Security  next year.
Such a tremendous outpouring of generosity is not uncommon, however. In the few short days after Hurricane Katrina devastated the Gulf Coast, major American corporations frequently under media scrutiny such as Wal-Mart and drug manufacturers came to the aid of victims. The Business & Media Institute 
documented then how the broadcast networks underreported, if not ignored, such charitable giving.