Yes, I used to have perfectly skin on my backside, shoulder, arms, and legs. After a few years of racing, I have just big-ass scars.
The thing is that racing also put me in the best shape of my life. There's something to be said about 6% body fat, a 35 beats per minute resting heart rate, and the feeling that I can accomplish anything. Of course, I paid for that with the scars, the new bike parts, and the new helmets. Then again, just driving around is very dangerous, and you can't even get in shape while doing that. My point is that every activity has its benefit and cost.