Drunk driving hurts innocent people, thus preventing them from attaining what they love.
If heroin use leads to crime then maybe it could be forbidden for similar reasons. Or if the government can determine that people don't love heroin and instead only use it as an escape or due to addiction, then forbidding it might help those people to attain what they actually love.
If heroin use leads to crime then maybe it could be forbidden for similar reasons. Or if the government can determine that people don't love heroin and instead only use it as an escape or due to addiction, then forbidding it might help those people to attain what they actually love.