In my language we call this "sveta jeza," it could be directly translated as "holly anger" or perhaps even as "divine anger." It is an anger that bursts out of injustice. If you read Dante's Divine Commedy there's a lot of it there, even (or especially) in Paradiso where Dante condems greed and corruption among the clergy, aristocracy or even normal folks. Long and jucy monologues. :)

However, you should be careful because it can make you a bitter person. Especially in times like these it is difficult to prevent your heart from hardening.