it's the dying that usually keeps people from jaywalking, not shame or even the law. reasonable folks (people who are neither blind rule-followers or needlessly reckless) have no problems "jaywalking" when an accident is practically impossible (cars are absent or far away).

in my experience, littering (and public urination/defecation by non-homeless people) almost seem like acts of aggression or defiance by the transgressors. i've rarely gotten anything but anger in return for speaking up about it. it seems to defy shame intentionally, rather than succumb to scoial norming.