It does present a weird science communication problem. After the first generation, scientists are all focused on "little effects" and don't get excited about talking about the big effects any more. They like talking about what they're working on (little effects). Textbooks drift from fundamentals and new entrants and outsiders get a distorted view of reality.
Not sure what you are referring to, but the only unjustifiable things in the (so called) medical field are snake oil sales men trying to make a quick buck by instilling a fear of science into people's minds. Like anti-vax idiots. Or homeopathic bullshit.