The Age of Reason
While Men provided the alchemical advances that led to the current industrialization of Drathl, the dwarves brought the engineering knowledge and machinery to make it all come together. Karth, the ancestral home of the Dwarves, has become the industrial heart of the Empire, bringing new wealth to the Dwarven Upper Class. (The dwarves had fallen into poverty previously when their mines mostly dried up during the Great War).
Now, rather than growing up to be miners, most dwarves either mature to own factories, or work in them. The chasm between rich and poor is most glaringly obvious among the dwarves of the Karth Province. This has inspired many to try and improve their situation by either moving to the Celeria Province to again return to mining, or many others to instead try their hand at Mercenary work.