People who cheat their way to a degree, are lying to future employees about possessing a level of knowledge that they do not have.
An academic degree is bestowed upon a graduate as a sort of symbol of authenticity, backed by the college/university's reputation, that the graduate has a certain level of mastery in a given set of topics.
This mastery includes both a broad base, the ability to make well reasoned arguments, perform basic research, write papers, an understanding of world history, and other undergraduate degree pre-reqs.
Cheating is a way for a student to acquire such certification without having done the work, and without having learned the skills that work imparts.
> Academic grades and degrees, to the extent that they affect your life after academia, should be based on what you can accomplish or explain, not how well you can write answers.
The cheating services being offered here are about writing essay papers, which are the most basic case of being able to produce an end product after having applied research and critical thinking to a problem space.
Being able to communicate, and think, in a clear and coherent manner is one of the very foundations of a classic liberal education. It is also one of the most important skills for almost any professional job.
Lying about possessing that ability is a form of deceit, and by common consensus, morally objectionable.