Antibiotics - when they work - are miraculous.
A patient does not have to understand what antibiotics are, or why antibiotics are effective. All that is required is for someone somewhere in the world to create an effective antibiotic and put it into a pill. Then it can be shipped to someone with a bacterial infection, and the patient will be cured.
Economics isn't like that. There are economic pills: Eliminate Barriers to Trade. Cut Government Spending. Target Inflation. Target NGDP. Tax Consumption Not Income. And some countries do take their economic medicine. But swallowing economics pills does not always lead to the hoped for results.
Partly that's because some economic prescriptions are simply bad medicine.
But the point I want to make here is that patient cannot use economic medicine effectively unless they understand how it works. Take, for example, carbon taxes. There is a fairly high degree of consensus among economists carbon taxes are a good idea (see here). Yet it's not possible to simply swallow a carbon tax pill. Designing and implementing a carbon tax requires specific knowledge.