The real thing
Real ESD chairs are conductive all the way to the floor and require to stand on earthed conductive flooring in order to work. No office is going to be kitted out like this.
I don't have conductive flooring in my electronics shop as it's jolly expensive, but my ESD chair is connected to a protective dissipation point by a cable. That works just as well, but unlike in an office the chair is not expected to move around much.
The fundamental problem is the prevalent use of insulating synthetic materials in flooring, furniture and clothing. Wearing cotton and using a feather cushion on a wooden or metal chair standing on wool carpet largely avoids static build up in the first place, but it's not "modern" looking enough for the corporate image.