I suspect (although I've made no effort to verify this) that some standards organisations were set up in the days of paper copies and secretaries and typists, when they needed a 10-storey office building [1]. So naturally they set up a pricing structure reflecting those expenses.

Then they kept the employee numbers and pricing structure due to institutional inertia.

[1] https://goo.gl/maps/MK3C9AUgzV16Svem8