Many people get excited and interested in blockchains because they want to radically alter the existing social order and they see blockchains as the most effective path to bring this about.

Thus, when these people make progress they cast it in those terms (radical social change). This becomes a feedback loop which attracts more radicals to the blockchain space and also amplifies the current radicals belief that they really can make a difference. This has both negative and positive effects:

* the negative effects are hype, the desire for ideological purity, expectations which can't be met, and irrational optimism,

* the positive effects are large numbers of smart motivated people who are willing to think big and irrational optimism.

I think spaceX and the startup world in general operates under a similar feedback loop (see "making the world a better place").