The unity of design does not necessarily imply an aristocracy of architects. The unity of design refers to the pursuit of harmony and unity in the design process, which requires designers to consider the overall layout and details of the design to achieve a unified and harmonious effect. This does not necessarily mean that only a certain class of architects can achieve this goal. In fact, many different designers can create designs with a unified style, as long as they have a good understanding of the design principles and can effectively apply them to their work.

Therefore, the unity of design is not a criterion for judging the status or class of architects. It is more about the designer's ability to comprehend and apply design principles, as well as their creativity and experience in the field. Different designers may have different designs and styles, but they can all create works with a unified style as long as they meet certain design requirements and principles.