> we were keeping many millions of dollars of daily transactions afloat and it was not unusual to receive death threats from business folks when they couldn't do their jobs

That's crazy. My team works on a part of a system handling several million $/day, and if something goes wrong then everyone's chill about it. Lost $100k revenue? Happens. We'll have the comms team send out something about it. The most heated things got was a time that a manager said something along the lines of "yeah it'll be bad if we can't roll out this thing in the next 2 hours." If I got a death threat that's an instant email to HR.