It depends hugely on the management of the airline.
Yes, 411a is technically correct. Sure, let's just fire everyone who screws up at any time, ever, no pension, go to bed without any supper etc. Hell, why not guillotine them? Bit messy, admittedly, but gosh you'd get the message across - there wouldn't be too many pilots left in a job, of course, but by golly they'd be aces wouldn't they? God, I wish I was perfect - must be so satisfying in in that Ivory Tower .....
Listen, those of you who wish to bring religious fundamentalism to the flight deck, someone very close to me flies for a European (mainland) long haul outfit which is so draconian that some people are physically sick when the word 'simulator' appears on the roster - (I know, I've cleaned up after) - an outfit where the offence of not being fit to fly is considered a hostile act redeemable only by a satisfactory visit to the sickness police. Needless to say their fuel policy is jack-booted to say the least. Any extra fuel, any, must be justified in writing - and by God you'd better be seriously cast-iron when you appear before the fuel Ayotollah (who, incidentally, is able to bend his own rules a bit and, naturally, is deemed by all to fly like a turkey) This character has ordered the Nav Planning department to always fuel-plan for the closest alternate, regardless of weather, and then fly the Atlantic at the minimum possible Mach No ... (I know, don't ask.) The whole ethos of the place is based on dictatorship with, of course, the associated witch-hunts. Is it any wonder that with outfits like this, otherwise perfectly sane, excellent, professional airmen very occasionally find themselves staring at fuel gauges approaching the squeezed-ass point? It is this sort of Flight-Operations Management philosophy which generates incidents like this - I simply refuse to believe that there are hundreds of us out there who are cavalier about fuel ... no - but there might be quite a few who work in a horrible atmosphere.
Me? I'm bl@@dy lucky where I work - I have never had a single diversion, weather delay, or fuel load questioned by my management in 25 years. (We did have one character about 10 years ago who tried to introduce the lunacy of fuel-burn competitions and naming and shaming, but The Big Boss said 'listen buddy, we trained 'em, so we trust 'em - kindly don't bang the door as you depart') Our fuel policy says, in precis, 'be sensible with fuel' ... and I know of not one of our lot who isn't precisely that.
That's the way to run it; with respect - not with a shotgun.