Ethereum may make monetary policy decisions like, 'Let's do 1% inflation to support the ongoing development of the Ethereum protocol.' A token built on Ethereum might want to do the same.

I'd guess blockchains will be the full-blown backbone of virtual worlds - the system for currency, assets, identity, even governance - before doing the same in the 'real world.' Which is where I think we will end up in the real world eventually; it's just a matter of which goes first and how long until it's the case for both.

Tokens align incentives between developers, contributors, users, and investors. They allow everyone who wants to contribute to a project early the opportunity to get in on the ground floor.

Fred Ehrsam Quotes