It would also be more realistic. And add flavor to the game. Instead of trying to specialize and min-max your planets to 100% efficiency, the goal instead would be to stop your idiotic people from creating economic crashes every 20 turns or so. To quote:
First devised by its two obsessive creators in 2002, Dwarf Fortress involves taking a band of dwarves and building them into a miniature civilization. This includes all the implied strategy and resource management: assigning jobs, collecting and storing goods, building and using structures, and eventually defending yourself against other civilizations. In a profile of the game’s co-creators, theNew York Times described Dwarf Fortress as “a series of staggeringly elaborate challenges and devastating setbacks.”