One of the customers I've worked for in Japan has alerts over the loudspeakers when it's time to go home. The company I work for had people working insane hours (14+ daily) and acted like it was normal. The people were obviously not doing much work staying later, but they wanted to appear to be dedicated. I'd much rather my people work hard when we need it and have time to unwind when we don't. I see it as a failing of management of every day requires an emergency level of effort.