(And I thought I framed my suggestion not as an "Occupy!" one, but in terms of the need to integrate VCs with offline digital cash -- a need being investigated by an estimated 70% of the world's governments right now... Yet I think I was still seen as a wild-eyed revolutionary. Sigh.)
The only good use case I can see for combining VCs with blockchains is if the wallet holds digital cash and credentials. But I am not yet convinced that users will want to hold both in the same wallet. The same device yes, but it could still be different apps.