The word qualification, as in a sheet of paper that certifies your completion of a course, whether academic or vocational, bears scrutiny.
Indeed it can be said that a qualification qualifies a person, that is, sets a limit on them (as in the expression a qualified success in contrast to an unqualified success), perhaps even a quality, but their individuality is nonetheless qualified, i.e. limited, in the shape of this qualification and what this entails for that person's sovereignty.
Society provides qualifications and requires them because it is not interested in sovereign independent human beings but in qualified, i.e. delimited, human beings who are prepared to make the sacrifices necessary to conform to that society's norms, regulations and expectations (including the law of money).
While it is possible to see that a qualification certifies a quality that you have as the holder of that qualification, that quality in the strict sense need not be a wholesome trait but more of a delimitation, a designation, something that people can ascribe to you on seeing your qualification, a short-hand habit dear to employers.
In short qualifications qualify people. By defining their limit they signpost what careers and tasks people are suited for in technological society and have managed to efface - or, as one could argue, evince - the infinite potentiality of the unqualified individual on whom no limits, personality traits or societal designations can be pinned.