Socialist =! communist. Allende's government doesn't have much in common with Soviet Unions brutal authoritarian communism, which is the only practical form of large scale communism as per history. Allende socialized some small parts of his economy (only coal?), but it was mostly a market economy even during his height of popularity.

Also, there's a lot to say about cybernetics and how a lot of it is pretty dead and for good reasons. I imagine most people see the cool Star Trek-like control room and enjoy Cybersyn on a visual design level than a "this was a good idea for government" level.

I think its obvious that authoritarian governments do poorly with information technology, outside of whats needed for military dominance, due to its democratizing effects. The SU couldn't have a Western-style internet because it would have become a political threat to the SU and strangled in the cradle.

Allende was a little left of, say, France, who had a system like this:

https://en.wikipedia.org/wiki/Minitel

France's Minitel network doesn't get enough ink, imo. Its impressive this proto-web network took off. We're talking nearly 10m sales in a country that had about 50m people at the time. France Telecom estimates 25m people had access to Minitels, so half the population. 50% wired in 1980s is very, very impressive.