Comment by rkangel
This question has an implicit assumption that you're talking about a US-style health system and the incentives that exist in a system of that structure.
This is exactly why a structure like the UK NHS which is going for "what's the most healthcare I can get for the country with a fixed pot of money" is a better setup.
For instance, in the UK the female contraceptive pill is free to whoever wants it. Because that is a whole lot cheaper than extra (unwanted) pregnancies. Similarly the NHS has spent money on reducing smoking because that's cheaper than dealing with the health effects.
> the female contraceptive pill is free to whoever wants it. Because that is a whole lot cheaper than extra (unwanted) pregnancies.
Abundant contraception encourages and promotes promiscuity
> the NHS has spent money on reducing smoking because that's cheaper than dealing with the health effects.
Reducing tobacco usage makes more room for nicotine OTC and vaping to replace it. Among other stimulants.