Perhaps Draco had them all in his control, too—maybe there was some sort of spell involved here. She wouldn’t put it past him. It would be no effort on his part to bewitch so many people. How could they bow to him now when surely years ago they must have been searching for him in every darkened corner to arrest him under the charge of murdering Dumbledore? Or that he was the reason that Azkaban still lay in ruins?