You seem distraught over this, but I fail to see how it's a bad thing.

Anger may be a decent motivator, but it's an emotion that tends to overwhelm people and causes them to act carelessly. More often than not, it's a weakness that makes you easy to manipulate. In poker, they call it "on tilt," referring to a state of mind in which the player becomes so angered or frustrated that they begin to make reckless and stupid decisions. It's a common strategy to goad people until they get on tilt because it turns them into an easy target.