No.
This goes back to the point that PTSD is PTSD across the different populations, but certain types of work put the person into the situation over and over again.
Senator Roméo Dallaire talked about the helplessness in observing and not being able to respond to the terror he saw in Rwanda.
I think there is a bit of a difference with a worker exposed to trauma and feeling survivor guilt or responsibility for doing something, or not doing something, that could have prevented death or injury.