This is only true if you make the BIG assumption that everyone has valuable contributions to make to the global economy. There's various evidently false things

This is only true if you make the BIG assumption that everyone has valuable contributions to make to the global economy. There's various evidently false things it depends on, like that no-one is both successful and hoards money just for the fun of it. So this is not true. I would even argue it's very, very not true, and that the medieval economy illustrates this. It was a lot like a bitcoin economy : unfalsifiable money (gold) in limited supply. Most people unable to contribute in any meaningful sense. What did we see ? Equitable distribution of goods and services (and gold) ? Hell, no. Of course, bitcoin is in the moronically stupid position that it both depends on the economy it has doesn't exist (power, and bitcoins MUST be divided over many players that don't trust eachother for bitcoin to work) and it itself is a centralizing force. And that's ignoring the fact that it depends on preimage-attack resistance of SHA256. That's currently true, but keep in mind that it's 12 years old and the previous standard, MD5, held out for ~17 years. Whilst I would say it'll likely last a bit longer than MD5, it's (overwhelmingly likely) not immortal.