Care to try again, or perhaps attempt to defend this point of view?
Really? All employees had safe working conditions before regulation? Or just the ones with a strong bargaining position?
The government saw something good and extended that to everyone. No, the market didn't "fix" employee safety. It granted the benefit of a safe working environment to a few people, the government "fixed" the rest.
You seem to take the position that 'safety' in the workplace is an absolute. That either a job is safe or it's not. It doesn't work that way, and I'm sure that you wouldn't consider my job safe. So whether or not a particular occupation is a 'safe working condition' or not isn't something that the government decides, the workers do. It's still that way, no matter what the government agents will tell you. If the job is too hazardous for the professionals to do it, the company is either going to offer enough of a risk premium to overcome the fear factor or take steps to make it safe enough that the professionals are willing to do the work. The government regs on the matter still come later. Do you know what the most dangerous, and highest paying skilled labor job in America is? A high tension lineman. These guys are paid on the order of $70+ per hour to be dropped by a cable from a helicopter onto a high tension power line, in order to inspect and repair it, while the power is still on. They earn every penny, but can't get life insurance. They aren't just near the power lines, they are actually sitting on them. The voltage of a high tension transmission line is usually 14,400 volts or higher.