What contribution do urban architects, urban commanders and urban beauticians make to the development of contemporary cities?

First of all, we must clarify the meaning of these three. In my understanding, urban architects are migrant workers, and in a broad sense, they refer to people who participate in various urban construction, including the design and construction of buildings; City commander refers to the person who directs the city's transportation, logistics and other resources and makes the city's big machines run quickly, such as traffic police, take-away and logistics; Urban beauticians refer to sanitation workers. In a broad sense, beauticians also include garbage removal, water cleaning, greening management, and municipal inspections. They maintain the urban environment in all aspects.

There is a certain hierarchical relationship with people's feelings. First of all, urban architects are needed, which is the cornerstone of urban development. Officially, they will gradually build a city. Without them, everything is a wasteland. Where did this city come from? Secondly, the city commander, when a city expands to a certain extent, various resources will not be coordinated independently and organically, which seriously hinders the city and its development. Finally, when the city continues to expand and the living standards of residents continue to improve, a good living environment becomes the main contradiction, and urban beauticians are the people who repair and maintain the whole urban environment. Without them, we will soon experience a garbage siege.