OK, so why is people killing themselves through their own stupidity such a bad thing?
Serious injury, yes, because that costs taxpayers money to sort out, but frankly I could think of much worse ways to go than wrapping myself round a tree at 100+mph and dieing instantly, and I'd be quite happy to just be swept off the road and left there for the crows. I'm not gonna care am I?
I enjoy driving. Give me a nice *empty* country road and I'll drive it as hard as I dare (currently skill and car capability outweighs nerve by some margin – too much at stake). Why? It's fun. Exactly the same reason as I ride bikes. If I **** it up, it's my problem, and I'll have to live (or not) with the results. I'm hopless at overtaking, and I'm cautious on blind bends, simply because I don't want to involve others in my mistakes.
The fact is many accidents many accidents do involve lots of Innocent people, by their very nature the accidents are when something unexpected happens, whether it's a car pulling out of a junction or corner being sharper than you expect or some fuel on the road. If you want to race goto a race track, it's hardly an unfair think to ask.