Same Facts has a nice post tying drug addiction and political demagoguery - sometimes you can only aim for health improvements instead of fully quitting the drug, and it's similarly an issue in politics:
Thus, in some cases, the right policy is to give injection drug users access to sterile needles. In others, the right policy is to give grandstanding congressmen some way to pander to ignorant voters without crashing the economy. We all wish that heroin users would stop using. We all wish that Congressmen would not demagogue the debt ceiling. Neither wish will be granted soon.