People of every country are hardworking but there are differences between them, in terms of people's hard work, some people can do physical work and some people can do mental work. But mental exertion attracts the most in the present, because the person who has the most knowledge and respect for knowledge is sure to succeed in the future.
Because it is usually possible for companies to develop this in some cases as they empower their employees to do their jobs in any way they can. Because the more people are able to work with their intellectual capacity, the more just and highly equipped work is for them, it is usually in developed countries to increase the work capacity of such people so that they can develop the capacity for better work in the future.
In developed countries people do not make a mindset of working hard but rather they target working smart and on target. This is quite a big difference with developing countries because the mindset of people is that only by working hard they will make a lot of money. In fact, there is no guarantee because today's work involves many things that are much more precise, where those who have the ability to see opportunities can make money just by sitting at home. I understand the physical work that most people do now and it involves hard work using traditional labor.
But I don't quite understand the mental work that you mean and it's like a skeptical way of looking at things that I may not understand. In more broad terms there are jobs that are in the form of selling services and the rest of us work in a service capacity. Both of these things depend on how a person can adjust to whether or not there is an opportunity to make money.