A Potempkin village relies on forced perspective. Wherever there is a widespread social conceit being entertained, there is also a balance of incentives and disincentives holding the audience in their positions.
Anyone can lie, but when you lie in such a way that other people are incentivized to share the lie, it's public relations.
Remember that Justinian was the emperor for both the Justinian Code and the Nika riots. Remember that Cybersyn was creating a comprehensive structuralist economic model while Chile's soldiers were reduced to ransacking Pablo Neruda's house. You can have extremely refined symbolic state capacity -- even while material state capacity has collapsed.