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I am by no means an expert (actually this is all pretty new to me so I look forward to feedback), but that diagram seems a bit dated. There's a lot of potential for scripted blockchains like Ethereum to cut out a lot of transactional overhead in a lot of industries.

(2014) https://bitcoinmagazine.com/articles/ethereum-next-generatio...

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There are no efficiencies in turing complete languages on a blockchain: http://www.coindesk.com/turing-complete-smart-contracts/

Turing completeness is always more efficiently expressed as a multisig

There are extremely important regulatory differences.

The right to run an oracle which broadcasts the winner of the SuperBowl is well protected by the 1st amendment.

The right to arbitrate a gambling contract based on the SuperBowl is not as clear.

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