When you get beyond the immediate family, relying on altruism as the organizing principle starts to break down.
Societies that provide incentives for delivering value to other citizens - going to work, doing a job, becoming wealthy if you drastically improve society - will win long term over those that provide disincentives to hard work and providing value.
Web3 and crypto provide artificial scarcity to digital goods. This is an experiment in economics. I believe providing economic incentives, when properly aligned with the tasks desired, can result in a more efficient and successful internet. Relying solely on volunteers in any group has very rarely worked - even the largest non-profits have highly paid directors and legions of paid employees. This is not some revolutionary idea, other than the fact that digital goods can have artificial scarcity.