Just to support. I know my wife and I would probably quit our jobs. I asked my friends, who are also professionals and ALL said they would quit a lot sooner and lots said they would have never pursued a higher degree if they got a monthly pay check, they would just do a minwage job to cover the difference and not need to stress so hard at their engineering jobs, lawyer jobs, or financial institute jobs. SO YES! I am starting to think the outlier saying is wrong. There are lot of us out there that would up and quit (Mostly Professionals).
There are a couple of problems with these sorts of "I asked all my friends...." surveys.
1: Many people say one thing but do another. Lots of people may say they would quit work if only they were given a few bucks a month and go live the simple life. Far fewer people would actually do it. Just look at how many of these people could have done their degree, got a junior level position in the field and stayed there making just enough to pay their bills and not having the stress. Instead, by the sounds of it, they have not done that. Why?
2: These people are answering your question with the benefit of hindsight. They see what they have done over their career and are now making the decision that it wasn't worth it. They believe had they had the choice "back then" they would have skipped it all and taken the few bucks and lived the simple life. I respectfully suggest that this is very unlikely to be the case. "Back then" they had things they wanted to achieve, buy, do etc and they saw their high paying career as the means to that end. Plenty of less stressful, less hours, less demanding jobs out there. If these people truly would have been happy surviving on $800pm they could have done so without too much effort. Sure, more than being paid to do nothing but not much more.
3: Extrapolating the idea that other, younger people, would in large numbers take the option of never working if given the option of $800pm to do nothing does not account for the fact that these younger people are products of their culture. They have been trained from birth to be good, hardworking, debt ridden, consumers. I think very few would, at age 18 or so, see beyond the conditioning that tells them buying things makes them happy, keeping up with the Jones' is everything, more more more is the meaning of life. They would see $800pm as being enough to survive on the basics but their programming, if nothing else, will compel the majority to go out and find work to fulfill those desires.
So, in closing, I would say that YES the outlier theory is likely to be correct.