Two quotes here from an insightful post by William Michaelian, the third in his series on “Blind Poetics”:
A poet who insists on the superiority of his vision will attract followers who are afraid to see, think, and feel for themselves.
*
A poet who dismisses the life and work of another poet, living or dead, will dismiss any human being he thinks is in his way, or who challenges the cherished notion of himself.
I highly recommend reading the whole post, and indeed the entire series of “Blind Poetics” entries.