It's been.... 13 years since I've bothered, but you'll want to also have it dig through a lot of the calculations/formulas for how things are balanced. No idea if they ever fixed it, but at one point I jokingly set the tax rate to poor people for 20% to get rid of them, and afaict this overflowed how unhappy it made them back into being maximally happy.
Not that it needs to be a perfect, literally multi-agent simulated system but the garbage collection and a few other things operate under the hood on far simpler terms than are reflected visually, IIRC the biggest issue was that the visual representation of the trucks and garbage are an approximation based off of the heat maps which are themselves just an approximation mapped to the buildings from some far simpler terms.
Not sorry to sperg out, I grew up obsessed with SC2k, was like 10 when I bought some 300 page book from B&N that broke down every single mechanic and how it was calculated and the "correct" way to win. 2013 broke my heart, I was so hype for it.
Oh boy oh boy. Time to make my boy GLM work on something.