Suggest me a book in which a generally good powerful protagonist makes quick work of their enemies

Typically, heroes need some giant conflict to overcome, with many odds stacked against them.

Are there any worthy novels in which the protagonist is an authority figure, a generally good person, and absolutely schools their enemies and people attempting to commit wrongdoing? I mean, a straight-up beacon of hope, with power and respect, that just pummels evildoers and anybody with ill-intent?

Could be a story of a righteous judge, or beloved emperor, or something along those lines.