Thankfully non-government industry is exempt from this kind of thing. For example, the airline ticketing industry has kept up with modern technology and paradigms with its corruption-free SABRE system. Banks these days exchange trillions daily through modern full-stack phone apps.
This is for the old timer banks, the ones that had their HQs built around that mainframe. Take newer fintech banks and you're in for a treat. Some of the backends are so janky it's only a matter of time before one screws up badly. Most of the effort goes into the app-polish because that's the visible part that makes it into the media.
