The notion that the concept of money itself is dirty is an antiquated one. If you're not trading money you're trading time or limiting your scope. No approach is inherently worst than the others, but since the money way is new to decentralized networks that's where the innovation will naturally tend to happen.
But if you really don't like money in your decentralized networks I hear the GUN[1] ecosystem is pretty active. In-between solutions like Mastodon[2] are also blooming. And if you follow Ethereum's "leader" Vitalik Buterin on Twitter, you'll see he himself is very supportive of alternative approaches that don't involve cryptocurrency[3].
[1]: https://github.com/amark/gun
[3]: https://twitter.com/VitalikButerin/status/121797359890150604..., https://twitter.com/vitalikbuterin/status/120734452423568998...