Even the major “news for nerds” site in the early years of the new millennium, Slashdot, where there was awareness that FOSS was now fueling major economic growth, did not yet have the same overwhelming culture of startups, venture capital, megacorps, and hustling as the venue we’re conversing on now.
I don't think it was a change. Both things existed in parallel, with a little bit of crossover. The startup/VC/megacorp thing just won out, that's all. And nobody ever really doubted that it would, once it was visible.
I do think politics has gotten worse in the "post-truth era". And tech certainly enabled that. It's hard to blame anyone in particular, though. One thing we see in the show "Connections" is that it's always hard to predict the consequences of new technology. Even seeing it coming, it's not fair to believe tech workers should have saved us from the rightward swing.
> Tech in the 80s and 90s was the land of curious geeks who played with it because it was interesting, or because they had a goal they wanted to enable
For me it was tech in the 90’s and 00’s so I think the real explanation is even simpler: we grew up.
It’s very easy to be pure of intention and intellectual curiosity when mom fills the fridge.