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I don't mind people who work 14 hours days. Where I mind is when they basically end up "setting the standard" at their workplace and then everyone else gets compared to them when it comes time for performance reviews, promotions, etc.
It's an unrealistic standard for anyone with a family or other responsibilities or, to be honest, a healthy work-life balance and hobbies. It's nothing to do with being "lazy." Sorry but I have 2 young kids and 2 dogs, and probably spend more time "working" at the end of the day than someone who spends 14 hrs at their actual workplace... because I come home and have to cook and clean and look after babies and wake up through the night. But to an employer, I work "less." Is that lazy?? Or would I be justified in being annoyed if my employer asked why I can't/don't work as much as that asshole?
I don't mind people working 12-14hour days. If they're happy doing it so be it. 
I don't understand it and its not for me, but who cares. Where i start to to have a problem with these people is more often than not, they try to push this lifestyle onto other coworkers who prefer to spend their time at home/doing other shit. 
Like, you can stay at the office until 9p.m. but if you honestly believe i will accept a teams-meeting after 5p.m., you can screw right off. And don't whine about it either, because I'm not the one doing too little, you're the one doing "too much".