From the very start of my study about Le Bon's Theory, I thought what we can do even if we learn and know such a situation.
Today, I recognized one application for it.
In China, in most of authority of industries and societies, there are always related "Expert Groups" for making the necessary policies. Such as medical and hospitals, tele-communications, and so on, the member experts of those groups can be intelligent individually but within the groups, even if they are great in their own reseach field, they became "stupid" or in very low level of intelligence as any of low educated people.
For some of governments, the presidents or leader of the governments normally have their own "expert" consultants, who do their work seperately, not in a specific group. In this way, they can be as great as they can be as individuals.
To avoid more mistake, there should have more "experts" working independently, not be in any groups.