regarding the bootmaker...
i imagine that all people who made (make?) boots do not make them in precisely the same way or with exactly the same methods or techniques, or with the same amount of thought and care, or with the same amount of experimentation for new ways of making them, or the same materials, or with the same attention to aspects like style, or look, or comfort, or durability or....
so i question using the word "authority" in that sense as well...
and i definitely don't view someone with more experience at something as "hierarchy", "justified" or otherwise.
when i've attempted to learn something new, i often take in a lot of advice from different people, read a few things, try a few things myself that no one told me, combine aspects into my own methods, watch other people (with varying amounts of experience) do it, etc.