People with pedagogical or medical expertise will always be needed, but not in the current format.
Teachers and doctors - as they exist currently - are the product of a factory model of education and healthcare. They are hard jobs because they are poorly fitted to the complex needs of real people, who are not products on an assembly line.
It is that structure that alienates us from our own education and caring for one another. That is what is being addressed here. There might be "teachers" and "doctors" in a world without this factory model, but they likely wouldn't be full time specialised roles.