What a fun idea. I love the idea of a cosmology based on occupations, it's a really unique way of creating a world.
Here's my interpretation of your idea, I grouped them into three or so backgrounds to make things a little more concise.
In the beginning, the gods were lazy and capricious. The whole universe was a chaos of desires fulfilled quickly and forgotten: entire vineyards dredged up to make wine, oceans boiled for a bath, the gods used up the resources of the universe for their pleasure until there was nothing left but a blanched and drought-stricken wasteland.
The gods created servants to restore their lands, and these Seven Disciples were each given a job. In their cleverness, the Seven Disciples built roads, raised forests, and bound away the gods so that their gluttony could no longer damage the fabric of reality. Now each Disciple is a master of their own realm.
In the mortal realm, individuals take on occupations not just to earn gold, but as a holy act of worship that strengthens the powers of the Seven Disciples and their realms. By fulfilling your obligation as a guide or a soldier or a barkeep, you add your industry to the immortal realms, and keep the hedonistic gods at bay.
The Seven Obligations are...
Realm of Lemurs (entertainer, socialite, criminal) - a vast, unending city in which conversation flows like water, and words have the power of a potion or a blade.
Realm of Armored Fish (soldier, sailor) - schools of giant gleaming, scaled fish are used by celestials to transverse the broad ocean or go to battle.
Realm of Bees (artisan, farmer, peddler) - a hive made of rolling hills and well-trod roads, where the production of food and goods is endless.
Realm of the Chrysalis (scavenger, guard, noble) - a giant glass-walled castle sits at the center of this realm, dividing the land between a wasteland of nomadic scavengers, the guards on the wall, and the nobles who live in luxury within. Every century the order is upheaved: the nobles are forced from the castle and the scavengers take seat on the throne.
Realm of Serpents (merchant, sage, scribe) - great towers stand like wary snakes across the land, reaching towards the stars, each home to an academy, an observatory, a laboratory, or the merchants who package the knowledge to sell it to other realms.
Realm of Hounds (guide, wayfarer, charlatan) - city-states run by devils are the only defense against an ever-growing wilderness of dangerous beasts and deadly plants; is it more dangerous to wander outside the gates, or to deal with the powerful devils inside the walls?
