They have some vague idea that the structures that make money matter will continue into what's coming.

They may be right, but I would anticipate that they will enter the new age as Montezuma falling from his litter, as wealthy Jewish families in the 1930s desperately trading scraps of gold jewelry for a slightly increased chance to stay alive. My guess is that the coming upheaval is going to be so massive, and their doomsday bunkers so reliant on a million systems of food, information-exchange, weather prediction, safety, all sorts of stuff that's so baked into the structure that they're not thinking about it right now, that all they are building for themselves is expensive tombs. I don't think the monster cares how big your ranch is. Lots of people live on ranches, and the ones with deep knowledge of the biological systems that surround them, and on friendly terms with their neighbors and already knit into resilient communities, have a much better chance at it.

Think about Biosphere 2. Think about that libertarian cruise ship that was supposed to free them from the nation-state. These guys think their money privilege is going to continue into the post-money society, just because it always has, but there's no reason at all to think that it would.