I guess the driver of the car Paul Walker was in thought the exact same thing - "Man, I'm the greatest driver in the wor-".
No one is going to talk the "I'm too good" drivers and cyclists out of their lifestyle choice. It simply takes a split second of 'everything that can go wrong, does' to act as a wake-up call. And it's going to happen with more serious consequences.
If every other fool decides his skill is better than it really is, there's going to be chaos on the streets.