Let me preface everything by saying following your moral compass is good, even if you do it inconsistently, and even if that inconsistency is biased. It is unambiguously better to do something good when motivated, even if you didn't do something that would have been even better, and just as easy for you. In other words, don't let perfect be the enemy of good.
In 2019, the Twitter executive for the Middle East, Gordon MacMillan, was unmasked as an active duty officer in the British Army’s online psychological operations unit [1,2]. Despite this revelation, Twitter at the time defended his employment, and did not fire him. I don't know if Musk kept him or not.
The Iraq war (which predates Twitter, but is the kind of operation a Middle East psyops unit would try to sell to the public, and the risk of further US/UK-led wars in the area is high) is responsible for about 460k deaths [3].
But perhaps you were simply unaware, as the story was mostly ignored by the media [4]. Searching "Gordon MacMillan site:url" finds no relevant articles on theguardian.com, bbc.com, bbc.co.uk, nytimes.com, cnn.com, msnbc.com, latimes.com, theatlantic.com, washingtonpost.com, or foxnews.com
[1] https://www.middleeasteye.net/news/twitter-executive-also-pa...
[2] https://www.newsweek.com/twitter-executive-revealed-psyops-s...
[3] https://en.wikipedia.org/wiki/Casualties_of_the_Iraq_War
[4] https://fair.org/home/media-ignore-unmasking-of-twitter-exec...