Anyone "could" become one of these great things, but few people will. The ability to do a thing does not confer the prowess to see that thing through. Most businesses fail, the reason for this is that they are mismanaged. Not that the initial idea was poor in any way. Business is a degree for a reason.
Ethereum is a wonderful idea. I have never said otherwise. I just don't think the idea of a Corp that functions independent of a trained director or board is a good idea. Also, unless the blockchain is about to grow legs and arms to sign some contracts and pay some bills, you will need human actors to perform real world functions, and oracles to report binary outcomes back to the blockchain. Human actors are subject to fail. We aren't even talking about coercion or subversion.
To me, the DAO only seems to provide a more elegant form of voting rights in a Corp. A token is a share, with voting rights. What else does this token do besides that? Despite all the innovation that eth may provide once it's potential is fully realized, this token is a tradeable voting share of a company that's on a public, verifiable ledger.
Kinda like a stock.
Which makes this a security.
An illegal security, as it is not regulated by the SEC.
Yahoo is still crazy popular outside the States, btw.