UK here, I work in finance based stuff and some of the higher-ups commit (and try their best to encourage) that sort of devotion to the company (checking emails, meetings, etc while on leave) but I'm pretty far down the ladder so I don't have to deal with that shit. Even if I was higher up, though, I'd still actively avoid it - it's my allotted paid leave, meaning that I'm being paid for that time already. I'm not doing work for free on top of that.
I've actually had a discussion with my manager around a co-worker of mine who is a little more suggestible to those kinds of pressures. Our team was under a bit of duress and she's basically a wizard at what we do, with way more expertise and experience than the rest of us (it's an unfortunate situation where she can't take out the time to train us up because she's putting out so many fires, and upper management doesn't feel the need for external training due to her dousing those flames so well). She felt responsible and started putting in extra hours and weekends, and I felt that my manager was, at best, not dissuading her enough from doing so, or at worst, gently nudging her to carry on. I entirely understand why - it was causing us to get a bit of heat from upstairs and I imagine my boss was taking the brunt of it... but to be frank I don't really care about the output or performance of my company and was far more upset at how my colleague was being used.
I honestly don't think I'd survive the US work culture.
