Selfishness is not a long term successful approach. Since it's not sustainable. The selfless are losing in the short term frame yes. But they can build up stronger relationships that lasts for a life time. In the end the goal is to use Tokens to produce higher leverage by investing in human brains that think big and long term.
This space needs to evolve into digital jobs eventually if you truly want to maximise ROI. At the moment since it's such a new field everyone is just trying to do some blogging with random stuff. More organisation is needed. Niches + Community systems. And moderators that own various Niches would be an interesting experiment. People focusing on niches that they love. Therefore everyone is getting more of what they want.