@inthehands
I feel like I’ve had this conversation here before (sorry) and I’m not the best person to say this (@venya maybe?), but since no one else has yet as far as I can see:
The efficiency/risk trade-off is especially apparent in military contexts. A maximally efficient military operation, using the bare minimum of necessary manpower and 100% utilization of committed resources, can be completely disrupted by almost anything the enemy might do.