It's not about the isolation. It's about enabling absurd business models by all sorts of outsourcing, promising to simplify, but in reality complicating things by having to implement all sorts of intrusive anti-fraud checks, because anything automatic can and will be defrauded. Which in turn leads to misery of all involved legit parties, loss of quality of life, by being reduced to some cog in some machine. Oh, of course jobs! The bullshit ones. With the exception of the few at the top.

/me snorts...