Btw, criminal conviction related to the profession is not a proxy, it is really one of the things that matter, measured directly. So you're mixing concepts.
> criminal conviction related to the profession is not a proxy,
Yes, it is a proxy. Some people commit crimes but aren't charged or convicted. Some people are falsely convicted. Convictions of crimes absolutely are a proxy for committing crimes.
Btw, criminal conviction related to the profession is not a proxy, it is really one of the things that matter, measured directly. So you're mixing concepts.