Maybe it's a cultural thing but in most of the companies I worked at, this kind of behaviour would be seen as a _manager_ red flag rather than an employee heroism.
As in someone at director level or even HR would come down on the _manager_ for allowing this. The view is either the employee is under delivering or the team is under resourced and in both cases it's a _manager_ problem to be solved.
This is something I never understood in US companies, I mean considering all the concerns with liability and lawsuits everyone seems pretty chilled about squeezing 20 hour days from employees.
As in someone at director level or even HR would come down on the _manager_ for allowing this. The view is either the employee is under delivering or the team is under resourced and in both cases it's a _manager_ problem to be solved.
This is something I never understood in US companies, I mean considering all the concerns with liability and lawsuits everyone seems pretty chilled about squeezing 20 hour days from employees.