Working in a power plant and working on a 'dirt job' are two entirely different animals. Yes, radiation is radiation, but there the similarities end. Most techs that 'grow up' in one industry are like fish out of water in the other and moving in either direction can expose (sorry for that) any number of holes in one's experience level. I have seen plenty of 'dirt' techs that came to a plant and were worse than first year juniors (mostly because they didn't know that they didn't know) and others that did quite well after the initial 'adjustment' period. The same can be said for ex-navy techs. I am a product of commercial power and I am sure I would be uncomfortable (at least for a while) trying to go to a remediation site (or into the navy if that were even possible .) Saying that the 'power plant people' have a superiority mentality is no more accurate than the reverse... as evidenced by your post. Neither industry, nor the people in them, are inherently better or worse. Both have enough similarities to allow cross-over employment and enough differences to make the transition less than smooth.
There are many different 'animals' out there! The Navy program, the DOE world, the DOD (non NNP) world, Commercial Power, the NORM/TENORM world, the University world, the Medical world, the 'dirt' D&D world, etc. They have similarities, but all have differences - Dose rates, Contamination levels, expected DAC-hrs, etc. At this point in this 'old mans' life I've been fortunate to have worked in most, but I have only found a few techs that I could take anywhere.
In my commercial days there were Navy, Medical, DOE, etc., Techs that I gave full credit to after a month, others that remained juniors until we ran them off. I've seen the same on D&D, etc. projects where a great commercial tech had the attitude that 'at these levels it's not worth measuring'.
As had been said before, the RPM/RSO has to make the decision, after careful consideration and (hopefully) personal observation, what he/she can consider in stating this Technician is fully qualified for this job!
Just my
worth!