Risa

Don't forget when she tortured Tom Paris by giving him 30 days of solitary confinement, no reading material or anything to stimulate him, and gave him purposefully bland food the entire time.

That was already considered a breach of human rights in our unenlightened 20th century, but Janeway saw it as a fitting punishment for... checks notes... saving an entire species of sentient alien life, albeit ones whose ruler decided that they didn't want to be saved.