As whacky as the research sounds, theres precedents, albeit less funny ones.
Back in the 1980s where I lived, supermarkets used to always stick cardboard cutouts of policemen around the shop, cross-armed and staring. Apparently those where really effective.
Nobody actually thought it was a real policeman staring, but the psychological effect was enough that people felt too *observed* to actually go and do the crimes. I can only assume what this shows is it doesnt really matter what the authoritarian figure is , be he commissioner gordon, or batman, its enough to make people feel anxious about wanting to do good, or rather to be SEEN as doing good.
As the philosopher foucault observed, panopticon doesnt work by the prison guards doing the discipline, but the discontinuous sense of being observed made the prisoners discipline themselves.