> She clearly (or officially) doesn't understand money and subjective value

I can only assume you don't know who Christine Lagarde is because to suggest she doesn't understand money is not only ridiculous but bordering on offensive. Here is her wikipedia page: https://en.wikipedia.org/wiki/Christine_Lagarde

To say Lagarde doesn't understand money is like saying Paul Graham doesn't understand startups. It's absurd on its face. You may disagree with their philosophy but there's absolutely no denying their deep understanding of their respective subject matters.

That's exactly what I mean. If she indeed does understand money, why does she say that 'bitcoin is worthless, it's based on nothing'? It's quite clear to me that she says that only because it's her duty, and that's why she mentions her son, who is free to choose.