Statistics assist in determing "normal." Does it help the average person?

In social science, the outliers of statistics are dismissed from the data due to the seeming unexplainable outcomes.  In other words, only that which can be explained in the social experiment is mathematically valued.  The reasoning is that outliers need "further study.".  It's good math, indeed.  The glitch is that a statistical norm may inadvertently dismiss an evident reality -- and that reality is called a person.  Whereas as people have fingerprints, DNA and retinas that are unique to themselves - a statistical norm does not.  - TalkifUwant.