Interesting observation:

"Sometime over the past generation we became less likely to object to something because it is immoral and more likely to object to something because it is unhealthy or unsafe.

So smoking is now a worse evil than six of the Ten Commandments, and the word "sinful" is most commonly associated with chocolate."

Saturday Night Lite By David Brooks Published: March 12, 2005
http://www.nytimes.com/2005/03/12/opinion/12brooks.html?ex=1111381200&en=5e1cc2602df9a75d&ei=5070