A govt actuary in France had a similar observation.
(While the French govt naturally has an anti-smoking group, it has (or did have) a govt cigarette factory. jobs!)
The govt actuary said smoking was "cost-effective" because cigarettes killed people early, removing their decades of cost from the govt health system.
People were upset at that "actuarial humanity", but the actuary was naive, because he didn't take into account that smoking worsens, sickens, complicates many other diseases and medical interventions for smokers who don't die, and so cost the govt more than non-smokers.