The technology develops currently quite quickly. It is so, because there are increasing amount of schools and universities being opened and more and more people attending them at the same time. This proves that there is rising number of people working in this area, which also raises the probability that innovations will be implemented.
Grounding a new building is generally considered to be pretty complicated. As a result, especially in case of the most demanding buildings there are a lot of people who are responsible for the planning of the whole process. Inter alia a lot of work that has to be put into this process has to be divided in time and among miscellaneous employees.