Individual smokers suffer deprivation as a result of smoking.

In an Australian study that compared those who smoked in all three waves of a survey with those who were smokers only in the first wave, the odds of experiencing financial stress were 42% lower for quitters than for continued smokers.

The likelihood of smoking-induced deprivation is positively associated with younger age, minority status, and low income, among other factors.
In developing countries low-income households containing at least one smoker tend to divert a significant amount of (already scarce) income to tobacco products, which results in less resources for food and other essentials. This leads to a real decline in the quantity and quality of food consumed in poorest households, and there is a statistically significant reduction in the nutritional status of children in such households.

Tobacco consuming households in India had lower consumption of milk, education and clean fuels which has more direct impact on women and children compared to men. Tobacco spending was also found to have negative effects on per capita nutrition intake.
Interventions to encourage cessation among disadvantaged households are likely to enhance their material conditions and standards of living, and to reduce socioeconomic disparities in mortality.

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Block S, Webb P. Up in Smoke: Tobacco Use, Expenditure on Food, and Child Malnutrition in Developing Countries. Economic Development and Cultural Change 58, no. 1 (October 1, 2009): 1-23.

John RM. Crowding out effect of tobacco expenditure and its implications on household resource allocation in India. Soc Sci Med. 2008; 66(6): 1356-1367.