I call that being exploitable.
Marxian style LTV analysis of the economy breaks down hardcore involving anything touching electrons. His analysis of the theory of alienation/exploitation is literally invalid in the era of computers, and exponentially so in the era of AI systems. It's not "exploitation" to be available in exchange for comically large amounts of money.
I wasn't reachable by phone for company related stuff outside my regular working hours unless I had on-call-duty, which means it was working hours.
I don't get why people would be proud about not setting boundaries.
For the record, this was never at night. Late in the evening, sure.
So it can actually make logical sense to do it occasionally even from a purely selfish perspective if it's half an hour on a random Tuesday evening and you aren't actually doing anything else important.
All depends if the company is actually going to be grateful or not though
Not sure if upper management sees this stuff. For the number of times I've fixed other people's crap (or found the root cause, so they can just fix it) I don't think I got any recognition for that.