I will talk about this here:
Let's be clear.
The way Oda treats his work or even his employee is not "cool" or should be treated as something "cool". I don't blame the guy too much (a good amount tho) as I understand that this is mostly a product of the Japanese way of thinking work, but this is an highly toxic way of viewing work.
Let's not promote that as something worthy of being praised.
This system must change. Not only for the mangaka, but also for the worker who are put under a very toxic and illegitimate amount of stress.
We disagree on some issues, but this is the one I can agree with you.
I have been through something like this recently.
I was hired by the best university in my country.
I already told you I have published 8 research articles.
So, I was handling all of the work in advanced analytical lab (students from my department and other departments too).
But the assistant professor wanted me to work in the lab during the day and write research papers for him in the night time.
I was having difficulty in sleeping because I was living in a hostel, plus a new city.
Their whole senior staff was telling me it is normal. They said other workers did the same. I was in lab from 9 AM to 8 PM.
Then they wanted me to write research articles till 5 AM 😎
The audacity!
I talked to the Head of Department, but he also tried to justify this. And I resigned the next day!
Didnt even said good bye, packed my bag and came home!
So, this happens everywhere, not only in Japan. Main cause is probably, the lack of job opportunities. People are afraid to leave, so they work for such toxic people/institutes.