To each their own. Live and let live. Really not sure why people even go on internet forums to ask questions like this, other than to get a bunch of emotional outbursts from strangers.
I'd work the job I do now for 4 months for $400k. I'd also do it for $40k or $4M. Not sure why I care about what someone else's situation is, unless I actually know them as a person, all of the details of their job, and can have a nice long informed conversation with them to bring up some interesting points like - the income taxes are going to make that $400k quite a bit less than you think, or, you're probably only working for healthcare coverage anyway, or maybe - time with your family is precious, and you seem to be starved of it. Maybe sprinkle in some - is there any 'meeting halfway'. Possibly some philosophical - four months of life is both insignificantly small in the whole scheme of things, but also all that you have if you were to know you'd get sick and die in month five...
Sure, us folks can have lots of fun with questions like this, but I don't get why folks get all worked up about it. The Boglehead OP has a pretty great position to make whatever decision they want and come out as it being a win.