The rate of injury matters far more than the rate of fatality and the rate of chronic health problems matters more than that. A "dangerous" job is one where you're likely to get hurt. A job that is likely to kill you is a self-limiting problem. Pretty soon nobody does it. A job that might kill you is one that likely won't be changed because the problems rarely reveal themselves. However, I personally have designed sound systems for boutique clothing chains that will produce a PEL of 80dB because an 8-hour exposure of 85 or more is a violation of OSHA. It's the flip side of designing industrial environments such that workers can walk around and do their jobs all day without having to wear hearing protection. Now explain to me how this is going to get better by handing it to the private sector. I can't wait.