[ouija]

Thanks for the feedback! I agree, manipulating the social environment sounds evil and may lead down a dangerous path.

I was mainly thinking about what Skinner describes as bringing "the individual under the control of some remote consequences of his behavior". For example, the prospect of ultimately bringing about the extinction of humanity in a few hundred years is too remote to have an effect on anybody's decisions. It would be good to have a system that mediates the effect. I guess, "internalisation of external costs" sounds less threatening.