Oh.. yes.. the producers are typically more talented. Not always of course.. really depends.. but it is in the same way a teacher would be more talented than a student. There are studio musicians who are very talented, but they are also people who work for pay. So say a singer, who writes some songs in her spare time and has some friends say she is good at singing Karaoke.. saves up some money and goes to a studio .. She is not at the same level as somebody who does it professionally for a job. The point is .. there is a separation between Professionals and Clients. That is what I was meaning.
And honestly, clients can be ANYTHING. Sure, maybe 1 in 20 is very good and rewarding to work with.. But 19 in 20.. are not. And it isn't only that. There is a lot of variety of jobs .. like recording Commercials, and Math Question voice overs .. or who knows.. Every time you hear anything, somebody needs to produce it.