Your medical example has happened before. And, it gives us the answer! People will believe the people who have better access to the media, which, in this case,

Your medical example has happened before. And, it gives us the answer! People will believe the people who have better access to the media, which, in this case, was tobacco companies hiring hacks to push a certain line of evidence demanding that the media teach the debate and give equal time. And as a result we got hundreds of thousands of excess deaths. Ironically, many of the same tobacco-cancer link deniers are now working in the service of the global warming denialist bloc. I guess oil barons pay better than southern planters.