Sorry to backtrack a few days, only picked up on the thread.
Anyone but anyone involved in the operation of an aircraft, from grooming, through bag chucking, payroll, etc to the MD of an Airline can influence the safe operation of said aircraft.
Take Capt Blood-pressure, and F/O Newtoline. What happens after 60 Hrs on shift over 4-5 nights we snap. 0600 Capt B-P not at his best, said groundie is best compared to a Polar Bear straight out of hibernation. Capt B-P now adopts same. Poor old F/O. Oh and the leading edge slats Sir?
No let us not let it happen again, CRM aside from morale, but moral a contributing factor.
Do not belittle ANY input into flight safety. Take-offs to equal landings is the only mandatory target the industry needs to achieve.
Just remember (and it applies to all trades), Payroll are the most important part of an airline on payday, staff travel as hols need booking, and noone goes nowhere without a clean log
