IMO it is probably more that people that work their entire lives to be astronauts and then wait years, sometimes decades, to get a flight slot are not the type

IMO it is probably more that people that work their entire lives to be astronauts and then wait years, sometimes decades, to get a flight slot are not the type to be risk averse. Lots of them were test pilots as well. So, these types of folks are naturally risk takers and I am sure have full trust in their supporting teams. I doubt they need to be coerced into doing dangerous things. All space flight is inherently risky.