That's the difference between a profession and non-professional work. Professionals are able to maintain minimum quality standards often through licenses, have

That's the difference between a profession and non-professional work. Professionals are able to maintain minimum quality standards often through licenses, have some cultural authority as exerts in their domain, and through their membership in a guild exert influence on the nature of the work. Businesses are in an eternal march to lower costs. Licenses limit labor supply. Brand value substitutes for expert knowledge. Jobs are systematically deskilled until a professional can be replaced with someone off the street, and from there simplified until the lowest quality worker can't mess it up.