I'm sure if you read some trade magazines targeted at lawyers, etc you'd find similar sentiments.
Another, slightly more cynical interpretation is that software engineers are "special snowflakes" who are much more likely than legal/financial/medical professionals to complain about long hours and/or burnout. Interestingly those three professions all have gruelingly long hours and require you to "pay your dues" early in you career. Yet those professionals seem to complain far less, perhaps because the long hours are an expected part of their culture. After all, in finance people typically brag about how long they stayed at the office. So there is clearly some difference in work culture between the professions.
Most of my friends and family who went into finance did so knowing what they were getting into, some even _wanting_ that. It definitely cultivates a different culture and set of expectations. (There are definitely some CSers I knew who love the grind, but I don't think I'm making a stretch to assert they were the minority, and often were within a specific slice of CS that requires that more similar culture)
Been working as a programmer professionally since 2001.
http://journals.lww.com/co-criticalcare/Abstract/2007/10000/...
(Edit: I just read the article, and see that the author cited Maslach already.)
I think your point about devs/designers/PMs/etc. having a unique culture is spot on. It's a field that tends to attract a lot of high achievers, and a field that people tend to tie themselves a lot to their work. That was one of my main problems - over a few years, I started to define myself based on the work I was doing. It's taken me a lot longer to dig out of it than I thought.
"Lawyers are at especially high risk for burnout, both because of the job and because of the personality traits we tend to have."
From this article: https://lawyerist.com/94605/recognize-prevent-lawyer-burnout...
Yes, I went looking for an article about lawyers and burnout, so it's not particularly telling, but it least it demonstrates existence.
So Devs are promoted into a difficult job without having good management skills, or often even a desire to be the boss.
I also think there is another reason that has been alluded to else where in the comments indirectly: ownership/autonomy. Compared to the other high-skill professions that you mention, software engineering in my opinion is bogged by a near-constant effort to belittle, control, and process-ify the work that we do. Some might enjoy the semblance of order it might bring to their day but it makes me retch. I always found it darkly amusing that a failure on the part of product or management to better predict the market or customer requirements somehow translated into more soul-sucking metrics and process for the development team, enforced by highly-unpleasant PMs who I wish would instead have followed their true calling in life and become serial killers.
I left significant RSUs and took a huge pay cut to get away from a large company that I felt was killing me slowly. I am not saying that I have arrived yet but I haven't had to go through a suck-filled daily standup in a few years and I am very grateful for that.