Whenever people are unemployed/not happy for a long period it seems the game turns those people violent (becoming criminals/rebels).
I think there should be a counter-point to that in that some people would just be lazy or turn apathetic.
Slackers would just want to hang around in parks all day, play frisbee, sneak into entertainment/healthcare/transportation buildings they don't have the wealth requirements for (possibly lowering efficiency or occupying a slot for a longer period than a normal visit), live in shacks but steal electricity from the grid if it's available (auto upgrade their shack), freaking out tourists and squares (lowering tourist ratings and faction approval), use the pools in the Mansions as baths (lowering housing quality), hang around the bus stops and metro stations hassling people for spare change, become a "street guru" and spawn other slackers similar to how crime lords increase the number of criminals, etc...
Solutions to these citizens could be treatment in the asylum to re-motivate them, pharmaceutical companies use them for medical trials of new drugs, forced enlistment in the army, build coffee shops so they can become writers, deportation or just lock'em up in prison.