Why Social Skills Are Not Enough
Many people on the autism spectrum learn the social scripts, and can blend in.  The problem is, these learned behaviors often have limited value in real world situations.  The motivation behind the behaviors, the reasons why we work to maintain relationships, to really understand another's perspective is lacking. 
 
Why Language and IQ Are Not Enough
The largest study ever conducted of high functioning adults with Asperger's and Autism was in 2001.  The hundreds of young adults followed all had high IQ's and good language skills.  Fifty percent of these individuals went on to college.  At the time of the study:

     *12% were employed
     *3% were living independently
     *65% reported little social contact outside their family
     *0% were married or involved in a romantic relationship
                                                                                
(National Autistic Society of Great Britain, 2001.  The NAS study is available at www.rdiconnect.com)

This and other studies demonstrate that academic achievement and language proficiency are not predictors of a quality of life.