Expertise needs to be confined to what it's good for

I pretty much agree with everything in this article, except that I don't really trust any authority totally. I need experts like doctors to tell me facts such as: smoking contributes to lung cancer. I don't need them to tell me not to smoke, it's none of their damned business whether I do or not. I practice law pretty much the same way. I advise my clients so that they can make their own decisions; I don't tell them what to do unless they beg me to.