To some individuals, towns, states, and the country, the production, distribution, and sale of cigarettes may be beneficial in numerous ways but their design is explicitly one for consumption.
To consumers, cigarettes are beneficial in precisely zero ways. Or, considering the below, in minus 599 ways:
In April of 1994, the five (5) major tobacco companies submitted to the United States Department of Health and Human Services a list of 599 additives in cigarettes that, while approved as additives to food, were not tested by burning. Burning changes the properties of chemicals.
Source: http://en.wikipedia.org/wiki/List_of_additives
I a smoker hoping, wishing even, that I have the power to quit. But I am also a smoker fearful of quitting, a fear I did not knowingly pay for.