Death by spreadsheet is an acceptable degree of separation for most in middle management. They can sleep at night without guilt for what they've done, because the system charitably setup twelve degrees of separation between their choices and the real-world harm. But do not be fooled, their choices set that harm into motion. Without their reckless disregard for human life, the harm would not be done.
I used to work at a TV station in Ohio. On weekends, we only had an 11pm news broadcast. Not much happened on weekends, ya know? I worked Monday-Friday 9-5, but someone on the weekend shift quit, so I also had to come in at 9pm on Sat/Sun to work the 11pm news. It was brutal. I worked seven days a week, even if two of them were ~3hrs.
This was a particularly bad winter. One Saturday, we had a level 2 snow emergency: That means you should only travel if you absolutely must. Like, it's not uncommon for cops to pull you over in level 2 emergencies to ask where you're going and why. It is genuinely dangerous to drive in that much snow.
I told my boss as much, how I almost crashed on the way home at 12:30am after a news broadcast. I told him I would need to call off if there were a snow emergency again during a night snow.
He told me, point blank, "If you ever call me about the goddamn snow, I will take it as a call of resignation."
And that was that! The very next Saturday, snow fell again. It was a level 2, but would become level 3 by sunup. Level 3 means driving is literally illegal except for ambulances and snow plows. I stared out the window, watching the snow, and I had to make a choice.
"Will I die for this? Will I kill myself to keep this job?" I made $11/hr.
Yes, managers work you to death. That's their job.