If people stop treating it as money, then is the thing the central bank prints still money? It can print more of the thing, sure.

Anyway, this isn't relevant to my argument upstream — it just changes the reason why nuclear reactors aren't properly pricable in our market economy, from "can't be insured due to worst case" to "worst case can destroy the currency". (It also doesn't rule out other argumens, pro or contra.)