Take a look at this video.
Why do you suppose this guy's family wants him to wear his seat belt? With all the driving laws in place and modern safety features of cars, surely nobody ever gets killed in a car wreck, right?
Why do modern buildings have sprinkler systems? Or fire extinguishers? Surely with modern building codes, and proper electrical and gas fittings, there are never fires any more.
If your question is genuine, that will answer it. If not, then move along, nothing can help you.