There's a chance the most informed people's salary depends on not understanding this. It takes a special kind of person to proclaim their profession is a danger to humanity and needs to be curtailed.
There's also the chance being more informed would lead to the same basic conclusion, and there's the chance that most informed people actually share his opinion (unbeknownst to you).
I once heard an ad sponsored by the American Podiatric Medical Association that listed the benefits of going to your podiatrist, and concluded with a recommendation that everyone should get a podiatric examination once per year, just to maintain foot health.
I'm sure that seemed intensely reasonable to all the heavily informed podiatrists that were involved.