Is anger a sign of righteousness?

Webster informs us that righteous is “acting in accord with divine or moral law”.

We often see US citizens, in our streets and byways, expressing their anger at certain actions taken by our government. On occasion this anger is directed at Big Bankers or some other group but generally it is directed at some action of government institutions.

“I’m mad and I won’t take it anymore” seems to be the general attitude often displayed by these demonstrators. I have concluded that most people identify the connection of anger to an argument signifies the righteousness of the argument and the person making the argument. Perhaps this is because anger often accompanies the pronouncements of preachers, priests, imams, rabies, and talk show hosts.

Do you think that anger necessarily signifies righteousness?

Do you think that anger signifies righteousness; but only for those protests for which you agree?