you are right, and one would think so... and I remain angry about it.
However doctors are told which drugs to push by the pharmaceutical reps who play a game of kickback, AND for the most part WE (the public) want a magic bullet; even this Iodine forum phenomenon is evidence of that.
Although the information is out there, being informed is not cost productive and they choose mammon over patient care and concern whether they know it or not.