I agree that this subject can be quite overt in some games, but we must also consider that there are socioeconomic factors to consider.
As a city/society grows so does the number of problems scale. And if for instance corruption grows above its initial scale target then the balance in the society will begin to falter. When this happens, the city guard for instance will begin to be stretched thin. Now depending on the quality of managers and leaders, some areas in the society will work very well and a few will show signs of negligent decay. Or it may be improperly managed, with leaders trying to be good at everything, but ending up failing in most aspects.
We can only hope that societies in the game will properly reflect this, but it will mean we will be witness to incompetence, but it shouldn't be that everyone is incompetent.