I think it depends on the individual. Some people realize that anger indicates a need for change and they may try to do something about it. Others express outrage by unproductive raging or turning their anger on others. Its the same with societies and individuals. Sometimes people as a group will try to fix something that outrage them. Other times they will misdirect their outrage on a scapegoat or rave on twitter as a substitute to real action. Humans are probably too unpredictable for that statement to be 100% accurate.