for what reason does the director propose to dismiss bernard?

This chapter begins with the Director and Henry Foster preparing for the arrival of Bernard, after which the Director plans to send him to Iceland. The Director justifies his actions, saying, "Unorthodoxy threatens more than the life of a mere individual; it strikes at Society itself." Later, in front of Bernard and the whole crowd gathered in the room he asserts, "For this reason I propose to dismiss him, to dismiss him with ignominy from the post he has held in this Centre; I propose forthwith to apply for his transference to a Sub-Centre of the lowest order and, that his punishment may serve the best interest of Society..."