I doubt that that's what you actually think. For example, I doubt you want me to be able to ask the government how much money was spent on impotence medication for you. There's a trade-off to be made regarding personal privacy. Why do you think that trade-off should be made against certain groups of people?

You can have transparency and privacy, they are not mutually exclusive in this case. Government spent X amount of money on Y number of prescriptions for medication Z. You can determine if there needs to be further auditing if Y exceeds the projected number of prescriptions based on prevalence of conditions.