Rather than inspiring a rich dialogue around how we can improve, it further polarizes the professionals who need to collaborate, and will only encourage us all to further entrench our defensive positions.
Saying "I don't care what anybody tells me..." is really just another way of putting your hands over your ears and yelling "La la la la la".
For those who are are permanently married to their preconceived notions about how the world works, it's important to remember what Robert Pirsig once said:
The real purpose of the scientific method is to make sure mother nature hasn't misled you into thinking something that you don't actually know.