Not sure it is an oligarchy but the rest of this sentence is probably the correct answer ("...where the goal is to sell printers and then keep making money by selling single use cartridges.").
Wow. Should we also say that people younger than 30 should not vote because they do not have the life experiences necessary to make rational decisions?
I agree with your sentiment. I do not see a scenario where financial institutions would agree to put their transactions into a distributed ledger with copies of the data (even encrypted) held by their competitors. If the financial institutions limit the ledger to computers within their control, what would be the benefit over a clustered database environment (I am assuming that most large financial institutions already have these).