I know that in Corporate there are real pressures to 'keep the show on the road'...weather / technical / knackered crew - none of these sufficient to stop the trip (I've arrived in my hotel too tired to fall asleep in the soup! - some years ago thankfully).
Things are changing - Pilots are having some success in utilising the M/MEL newly fitted to some aircraft, and we certainly plan our trips in accordance with FTL.
But, BR has a point - it's not all of us who can relax when the 'Man from The Ministry' shows up on the ramp.
BBC BR? Thought it was The Shopping Channel...
Sorry - an afterthought. Not sure that I've met anybody operating in/out of Moscow who has had much luck with saying 'nyet' to their Owner (talking pure corporate here).