> Shaming individuals doesn't seem to be productive or helpful.

I don't see how much support from history for that viewpoint. Some examples of positive societal change driven in part by shaming individuals: drink-driving, civil rights, sexual harassment, automobile safety, the slave trade, McCarthyism.

All those cases also have huge penalties or effective costs associated with them. Is there an accurate "shame first, then penalties came later" stand point?

Automobile safety in my life has only changed after fines. Sexual harrassment still happens and doesn't seem to be helped by shaming someone as much as firing them. Though we often don't have the guts or legal backing to publically shame someone.