Hermione blackmailed a journalist and kept her in a jar for several weeks. The following year she cursed a fellow student and left them permanently disfigured. I’m not sure that I would consider her more reliably moral… a good person overall, but with flaws.
Functionally, he’s good at being reliably moral. See: the mirror of erised, the second GoF task, going willingly to his death.
Reliably moral by traditional wizarding standards*. Hermione is more reliably moral by standards external to the wizarding world.
Hermione blackmailed a journalist and kept her in a jar for several weeks. The following year she cursed a fellow student and left them permanently disfigured. I’m not sure that I would consider her more reliably moral… a good person overall, but with flaws.