"Same fallacious point usually wheeled out by pro-speeders. The speed affects the *outcome* of the accident."
You seem to be deliberately missing the point and trying to divert attention with a statement of basic physics. Since only 5% of crashes are caused by excessive speed, that means that 95% are caused by something else. One of the major objections to speed cameras is that they target the cause of only 1 in 20 crashes.
If the intention was genuinely to improve road safety it would be far better to determine the causes of the other 19 in 20 and tackle those instead. A short list from my daily experience: stupidity, incompetence, recklessness. Sadly to actually deal with those problems would be politicial suicide as all but the 17 year old drivers can vote. The following measures would be unpopular but effectively cut the crash rate:
* Make the driving test tough enough to be meaningful. Include motorway driving and skid pan as mandatory parts of training. A driving license is a privilege for those competent enough to handle the responsibility, it is not a right.
* Mandatory 3 yearly retests for the over 70's. It doesn't matter that you've had X decades of driving, ability is proven to diminish with age and your ability now is what matters not your ability X decades ago. Your desire to dawdle to the shops does not trump everyone else's right not to be endangered by your lack of ability.
* Mandatory re-qualification for drivers causing a crash resulting in injury. Mandatory training "refresher" courses for causing lesser crashes.
* Limitation of power for new drivers like with motorcycles.
* Limit who new drivers can carry as passengers to close family members. Prevents peer pressure causing recklessness but allows acting as family driver to gain experience.
I'm not a "pro-speeder", I'm just against arbitrary, unproven limits and the failure of critical thinking that usually accompanies them, just to target 1 crash in 20.