They obviously mean "valuable" in terms of value to the company, not literal value as a human being.
In any case, yes, if someone wants to smash rocks with a hammer, manually, all day, their work would not be valuable to a company building cars, which is what the parent means. Simply doing some sort of "work" for work's sake has no value if that work is not useful.
In any case, yes, if someone wants to smash rocks with a hammer, manually, all day, their work would not be valuable to a company building cars, which is what the parent means. Simply doing some sort of "work" for work's sake has no value if that work is not useful.