Read The Death of Common Sense. OSHA is just another self-serving government jobs program. Fact is the injury/death rate of workers continued on the same (not accelerated) downward trend it was on before OSHA. If you look around you can find the stats on your own, independent of the book. During my stint in manufacturing, I found out quite a few things about OSHA and its inspectors.
Did you know inspectors get yearly bonuses based on the dollar amount of the fines they collect? We got fined a couple of hundred thousand for a mixing vessel "violations". The vessels in question had an opening on top designed to prevent paper bags from falling in during additions - it was about a foot square with bars about 4" apart running in one direction. Vessel had an impeller at the bottom (about 10 feet down) connected to a motor by a shaft at an angle that prevented you from touching it if your hand / arm was in the mixer. Didn't matter, common sense be damned, inspector proclaimed the systems in violation and fined us per mixer.
Also had a lock out/tag out procedure in place with fixed guards around chains, sprockets and other moving parts on production lines. Despite all the training and preaching we did as management, we had injuries where workers actively and intentionally removed guards to work on or clean moving machinery and got severely injured, including one fully de-gloved hand. Yup, we got fined heavily, sued by the employee and we couldn't fire him.
Yay OSHA.