> Isn't that just the reality of the field?
I'm a developer and I work 37.5 hours a week. Never in my professional life in the past 8 years have I been coerced to overwork (although, due to flexible worktime, I occassionally work on a few days a bit more, and on some, a bit less).
I would never describe my work environment as a "cage" of any sort.
Please, if you are overworked, do not expect it to be a good thing or an universal rule. Rather, I would suggest you approach it from an engineers perspective - "Ok, this time allocation thing is broken, I cannot seriously work this much, I want to have a life, how can I fix this".
This rule is often quite true in the workplace: You get what you are willing to accept. It is surprising how many things you can change (within limits) if you stop accepting things because they are, make up your mind about your limits (within agreed boundaries) and politely but firmly stick to them. Usually, if you explain your point of view politely, calmly and with confidence you can get pretty good results out of negotiations if you set realistic goals.
Of course, some people enjoy working long hours but in this case I would not describe their status as 'caged'.