That goes without saying
But if we go along with your thought a little further, it is not so much about money at all (though money in whatever form without doubt plays an important role here) as it is about making allies which you can ask for help in situations like this. With that said, I don't think you can trust anyone in such matters (financial ones) as it is lonely at the top while betrayal is only a matter of time when big money is involved
Which is exactly why Bitcoin beats gold and anything else. If you planned ahead and moved your gold reserves into a so called friendly country like Russia, you would still need to trust all the infrastructure that hosts your gold there which is a lot of people
But that's not my point
Indeed, you cannot trust gold for the reasons stated, but I don't think you can trust Bitcoin a lot more than that, either. To be 100% betrayal-proof, you should do everything by yourself. I don't think this is the case with Maduro as otherwise he wouldn't be in a situation like the one he is currently in). So he has to trust someone, and that is where there is not much difference between gold and Bitcoin as the flip side of trust is betrayal, as per definition. When money is involved and big money at that, you can't trust anyone, even your closest relatives like spouses, children, etc

That's why it is so lonely at the top (see Bezos case)