I have a Mustang that has had many modifications over the years. At one point it had a Kenne Bell twinscrew supercharger running at 16 psi with a lot of other supporting modifications. It made an insane amount of horsepower and an incredible amount of torque.
One night my son and I were pulling out of our neighborhood and there was a lot of construction going on and the intersection sight distance was not good. I pulled out and from nowhere a car was heading right for us. I gunned the engine and because it was so powerful and the traction so good it shot the car out if the path of the oncoming vehicle. Had I been in a less powerful car I would not have been able to avoid the collision. That night all that horsepower saved us from having a very nasty accident at the least and might have saved our lives at the worst.
The point is that, just like guns, cars don't kill people, people kill people. Most vehicle accidents occur where the driver is in a stock car or one with minimal modifications so the analogy of fast cars mean more accidents is not true. Heck, most ger heads I know respect their cars too much to abuse them and/or put them at risk by driving crazy. If we all were driving around vehicles with high horsepower, mega breaks, acute handling etc. then we just might have far fewer accidents.
I put having limits on horsepower up there with the government trying to keep us from buying a large soda at the convenience store or not having a salt shaker on the table at our favorite restaurant.