The government threw money at the arts in the mid-20th-century to show up the USSR and people are reading too much into it. If classicism had been the thing in the middle of the 20th century they would have funded that instead.

Is the popularity of reactive programming a Facebook psy-op? They certainly popularized it via React, but does that mean there was some deep agenda inside Facebook to popularize reactive programming to accomplish some mysterious occult goal? Or was it just that Facebook is big, happened to employ some good devs who liked reactive programming, and dumped a lot of money into it?

When big companies and governments throw money around they distort the market and whatever happens to be in the right place at the right time to grab that cash tends to get favored. That's usually all there is to it unless you can find concrete evidence that (for example) someone with authority in the CIA wanted to promote that specific type of art to achieve a specific societal outcome.