What does Nurse Ratched realize for the first time after McMurphy wins his battle?

One doctor discusses the “revolution” that occurred minutes before and says that McMurphy is no ordinary man they are dealing with. Another doctor suggests that McMurphy may be simply a shrewd con man and not mentally ill, but another says that McMurphy is sick and definitely a “Potential Assaultive.” The doctor worries that McMurphy may attack him during Individual Therapy. One of the doctors, Gideon, finally decides that they are not dealing with an ordinary man, but Nurse Ratched tells him that he is absolutely wrong. She says that McMurphy is not extraordinary, simply a man and just as subject to all the fears and cowardice and timidity as any other man, such that he ultimately can be controlled. I think that Ratched realizes how dangerous McMurphy is to her totalitarian contol of the ward.