I think the models will have to change, because where I live the majority even the college educated act brain dead, no matter their origin. I can't seem to find in history where any 'race' seems to have a superior IQ and use it for the 'good'.
Higher IQ is probably good for humanity so long as everyone has to hustle for sustenance. When a society is so wealthy that the super-intelligent don’t have to work but live off the labor of the average and lower intellects then that superintelligence becomes a liability to survival of the society. Is this, perhaps, an application of the Peter Principle?