Is anger ever beneficial?

To me, anger is never benificial. It's only good use is that it allows us to get out what has been bothering us but other than that, there's nothing beneficial. Anger only usually leads to pain of others and then we regret what we said because we wound up hurting someone close to us or someone that we don't even know. It's not good to keep things bottles up inside and when it comes to the breaking point, we just explode and it's never good.