Norway seems like an obvious counter example? If the unions and state grow enough power before resources start to get extracted it seems like they can keep the curse in check.
It has also been protecting politics from capital in various ways; public funding of political parties, strict bans on various forms of political adverts, forced disclosure laws, essentially forcing capital into a single visible chair (NHO), etc.
It has also been protecting politics from capital in various ways; public funding of political parties, strict bans on various forms of political adverts, forced disclosure laws, essentially forcing capital into a single visible chair (NHO), etc.