righteous indignation
不正を目にして義憤に駆られた。
I was seized with righteous indignation at the sight of injustice.
義憤から声を上げる若者が増えた。
More young people are speaking out from righteous anger.
彼の義憤は社会を動かす力になった。
His righteous indignation became a force that moved society.