I don't think I would agree with that assertion about carpenters. Just like everyone one else, they will only really
begin to learn after leaving college and moving out into the Real World, and (if striving to master their trade) will continue to learn throughout life. To suggest that only nurses continue to learn "on the job" just shows how out of touch some folk must be.
What planet are these people on?
But don't forget that the most famous carpenter the world has known never went to college!
Meanwhile, biomed techs are Engineering Technicians, not nurses. So any attempt to equate the two are bound to end in tears (as we have seen yet again). This is where all the talk about "Clinical Technologists" et al
leads. It is a False Flag at best.
And for what it's worth (probably not much), my idea of performance-related pay is:-
"No performance - no pay"!