Free viagra - could it mean the end of spam?

yog writes: Pfizer is offering free viagra and other drugs to the unemployed. Could this be an underhanded way to eliminate spam? Why would that 0.001% of the population click on another v1agra "rock hard all night" type of spam email, when they can obtain these coveted substances for free? I think Pfizer has unwittingly stumbled on a definitive solution to the spam problem, currently said to account for 94% of all email traffic. Maybe if this works, they could try legalizing cocaine and marijuana. The mind boggles at the possibilities.