How might Gregors unhappiness with his job relate to his sudden metamorphosis

On the first page we are informed, in between dashes, that "-Samsa was a commercial traveler-." This fact is introduced in an offhand manner, as something completely unimportant, thus bringing out its importance; understatement is a common literary technique for depicting emphasis. We might note that the narrative sequence in the course of which this fact is introduced is mostly from Gregor's point of view. The fact of his profession is something that he does not consider particularly important. The reduced emphasis on this important information concerning Gregor's profession shows that, for Gregor, his job is not something he is proud of; it is also something so natural to him that it is hardly worth mentioning.

As a "commercial traveler," or traveling salesman, Gregor belongs to the commercial business world. He is firmly rooted in the new economy that so many modern thinkers have railed against. This economy, where the emphasis is always on money rather than on craftsmanship or on one's humanity, is the world that surrounds Gregor.