She could respect his desire to better his station in life. With the end of the war, the Malfoys had fallen about as far as it was possible to fall without being executed. How his mother continued to survive was a marvel. The Dark Lord did not surround himself with traitors. Narcissa was never allowed in his presence, but she was kept alive to fill his dark purpose of reminding everyone what would happen to them if they tried to turn their back on their Lord. Of course, Hermione felt that execution was a much more effective method, but her opinion on the matter wasn't important.