Interesting and humorous read.
The problem with "overtime" is, even it's paid, it never stops. I personally feel, its ok if I am putting those extra hours occasionally as a work deadline is approaching and there's so much to do.
This post has very serious issue and tone, lot of humor in those responses and some interesting and serious tips. But one thing I missed here. Health implications of continuous stressful OT hours. The time you want to enjoy with family/leisure time is now consumed by work which not going to end even if world is ending. The stress takes toll on your health before you notice anything abnormal. Also whenever I take a proper break from day's work, I feel refreshed/replenished to do my work next day. How am I going to feel normal, lets say not wonderful/passionate, working next day, when yesterday was hell.
Another thing, OP's situation suggest there maybe problem in time estimation of work to be done which I don't know everyone faces working in project. Some experienced estimation engineer puts some benchmark hours for project tasks based on his perspective and then for cost reduction/winning the project/for happily ever after client, those hours are cut to short making the life of working engineer "stressful". But anyway this is established procedure across companies and people/system will not amend, easily.
Just imagine-You decided to go for that Star Wars movie/Marvel Cine-verse movie with friends/watch that Netflix's interesting series/any leisure time hobby which you planned in advance and your boss/wife/parent tells you to do this work immediately today instead of doing that. How much stress you get from only notion of this thought? How one is going to do better work under stress continuously without health implications? Will that hamper the work quality as well as health of an engineer? I am guessing, oh yes. Is that then recommended? Occasionally, yes. Continuously, no.
As the stress in life due to daily routine work/office politics/government policies/relationships/family/wife/life's decisions, indecisions, choices is not sufficient, working overtime continuously will be cherry on top. Why would one want to tighten the bolt, if its already yielded?