Okay! I will try to ask it differently. What is wrong with training someone to do things the way you expect them to be done?
I really don't think any one expects a person with a CWI to be an authority on anything. It is my understanding that CWI means you can read and interpret code as specified in a WQR, WPS or PQR. Beyond that there are Level II's and III's or Engineers that oversee their work.
When I took (and passed with a fairy high percentage) the test, I had been welding as well as machining for many years in everything from Copper mines to Super-critcal power plants - even assisted (looked over shoulders) in testing personal. I have certs in SMAW, GTAW, GMAW and SAW. But, I had never had to search through and interpret code. As I stated before I feel that CWI is just a launching point for someone to get started, and the test demonstrates ones ability & willingness to learn.
I know that for some folks it can turn into an ego trip, but a good supervisor should be able to control his people.
I just feel that CWI should be a door-opener for someone willing to learn and grow - not the finished product.
I am not as eloquent as Ghet or Gerald but I think they feel somewhat similar. Sorry if I am assuming too much (Chet/Gerald).