"Social intelligence" and "individual intelligent" are different animals....and there are forces at work which shape these phenomenon in ways science has yet to explain.
Impersonal, Universal, and Sublime forces all work upon the individual minds of social creatures.... On both an individual intellectual level and as part of a collective intelligence, the invisible hand of creative evolution works out the balance between.
These manifestations of a dynamic between "social" and "individual" intelligence are interconnected with the demands that the necessity of life, of individuals and societies, to evolve within an ever changing environment. What would be intelligent behavior for an individual member of a small tribe, that would help to ensure survival in one circumstance; would become suicidal (and possibly genocidal) if expressed by individuals living in larger, more highly socially structured communities.
The Human animal has worked out a dynamic of maintaining both highly evolved individual mental faculties, as well as the capacity for submitting to a collective social structure that operates under a different kind of intelligence.
There must be a higher power at work which acts as a moderator between the divergence of individual and social intelligence...some field of influence that operates as a happy median which enables intelligent individuals to subjectify themselves to and merge with the entity of social intelligence.
This higher intelligence is something many people and societies have felt the presence of in some way or another since the beginning.....but understanding exactly how it is connected with us individually, or how it works to interconnect us with each other socially, or how it connects us with the entire cosmos universally...... is still a mystery.
Still in this mystery there are many clues to be found... They can be found in the patterns which repeat themselves thorough the naturally observable world...these observations can be the basis for logical discussions and analysis that have been used to shape both social and individual intellect...
Applied understanding can reveal the underlying nature behind the phenomenon of many relevant issues...such as the explanation for disturbing trends like.... the decreasing brain sizes, loss of physical and sexual prowess, lowering of certain cognitive ability in the individual, how easily manipulated the masses are by miss-truth, overt lies and propaganda....etc
The problem may be in how we view things as "problems" to be be solved, instead of natural consequences of phenomenon which need to be understood more deeply first, before any attempts of interventive transcendence can be effectively initiated. With greater understanding it may become apparent that there are indeed very good explanations for why things are they way they are, and that action taken without this understanding may not have the desired effects.
Part of the human individual had to be culled in order for the construct of higher levels of social intelligence, The savage of the brave new world would never be able to adapt to or cope with a society where everybody belonged to everybody else. Imagine attempting to integrate a Cro-Magnon, with their larger brains, bodies, and strong primal drives; into a white collar world....the kind of world we live in no longer favors such traits, and the ideal paleolithic specimen would not be able to flourish in the present day modern world, nor would the type of archaic intuitive nature based intelligence possessed by such a being, be very appreciated by the contemporaries of the ivory tower intellectual scene.
Then imagine if the world was made up of 7 billion humans all as individualistic, and primally driven as our tribal ancestors....perhaps there are impersonal and universal forces acting to suppress and subjugate individual human intelligence and power to a social order, in order to prevent the human race from going apeshit crazy and destroying the world... In order to build a higher order of social intelligence the capacity for the expression of individual intelligence had to be suppressed and subverted, and the incorporated.
How these forces act to cull and harness the individual may be very disturbing to people with a more romantic version of human reality.... the eb and flow, point counter point; between the individual desire and the common good, has been played out in the lifetimes of countless human beings. Our stories are full of the interactions between the good ,bad ,and ugly side of our nature..... Misanthropic, Machiavellian and Malthusian methods which have been employed through much of our fall into history, have been very brutal and painful, but perhaps in the grand scheme of things where all necessary to bring balance and harmony to all the races of man kind, and prepare us all for the next stage of the evolution in consciousness...... the end result of which is a world of billions of people whom may not be on an individual level any more intelligent than they had been in the past, but collectively are a force beyond comprehension.