What really happened to it, was it should have started in 1990.
I disagree. Some of the really early movers I worked with in the early 2000s were already stuck with inflexible systems they'd bought in the 90s, so starting early wasn't necessarily a sign they'd do a decent job of it.
It wasn't how early tech transformation started, it was just how. 2010 was around the time when a significant chunk of public and private sector orgs started really realising that "digital" didn't just mean having an external supplier do a big website project, and then loads of apps, while carrying on as normal with the rest of their operations running much as they had for the previous 15 years.
So: as I said, there were people who went into gov tech around 2010, and they were motivated by the idea of using technology to deliver public services to taxpayers in a usable and useful way. They got a lot done from around 2010-2015, but then quite a few of them started making enemies (too much change, etc) and the big outsourcers wanted their contracts back, so the whole initiative is now a shadow of what it once was.
Now there's a new bunch of transformational "weirdos" in fashion, and unfortunately for us unlike the last bunch who were mostly from usenet, this bunch is from 8chan and some of the weirder Reddit subs.