You are assuming that low level employees are correct, and the CEO who is being fed information from more seniors engineers and accountants is wrong.
In the cost per meal example, he was rebuked by a person in charge of food services for the SF office. Not exactly a high level position. In her tweet, she guestimated that staff were at the office a certain % of time. Elon rebutted that claim by quoting actual numbers from the badge reading data. She talked about meals costing $20 each, Elon rebutted the claim by posting the total yearly budget from the accounting system.
I know a lot of people here all of a sudden think that Elon just goes with his gut on all decisions, but the guy actually bases his decisions on data. More so than previous Twitter CEOs. In the Lucid thread, we were comparing the early days of Lucid (now) versus early ramp of Model S (2011-2012). Unlike Lucid, Tesla back then was run with POSITIVE gross margins ... while they were starting a manufacturing ramp. Lucid has huge negative gross margins in comparison. Elon is actually a great CEO, and I am shocked (or not, I guess) that people have forgotten how hard it was to do all the things that Elon has accomplished. So, somehow this brilliant CEO that pulled off two impossible companies (Tesla and SpaceX) is all of a sudden an idiot when running Twitter?