Safety Gear, as the name implies, is meant to assist you in performing potentially dangerous work in a "safer" manner.
For starters; if you wear safety gear, then you have a safety mindset. (no offense to Cowboys, however, to be called a "Cowboy" when working in the woods, on a log home, or similar is not necessarily a good thing).
Finally, Safety Gear is not a "fail safe". It simply slows down/lessens the accident if one should happen. (e.g. if your saw kicks back and the chain cuts into your chaps there's a chance you'll still get cut, hopefully not nearly as severely).