Risk of death is a huge cost/downside. I've known several people poor enough to optimize all of their eating around cost per calorie. 30-50 calories is basically only worth your consideration if it's free at that point. If that came with a high risk of illness/death it's not even worth considering.
A lot of the cost per calorie is in preparation; if you can cook your own meals, you can reduce your cost per calorie signficantly. The problem is a lot of people don't have the time (or maybe will-power) to cook every meal; a few of my previous jobs made it very difficult to cook my own meals, so I ate fast-food alot, and gained a lot of weight.
When your boss starts pushing Return To Office, ask if the company has a worthwhile kitchen in the office; at least a burner and plenty of room in the refrigerator for ingredients; it should be feasible to cook breakfast and lunch, but also dinner, in case you need to work late.
"Starve now"? If you're talking about the US, get real.
Essentially nobody is starving in the US for lack of calories (unless it's a case of mental illness or something similar). In fact, in the US, usually the opposite is true. From the Wikipedia page on food insecurity in the US:
> Reliance on food banks has led to a rise in obesity and diabetes within the food insecure community. Many foods in food banks are highly processed and low in nutritional value leading to further health effects. One study showed 33% of American households visiting food pantries had diabetes.