I don't know what answer you are looking for.  Nurses fill a large variety of roles in healthcare.  In the nursing home setting, its everything from friend, caregiver, med giver, monitering  vitals and medical assessments.   In the hospital setting, its more of making sure that all orders are carried out in addition to assessments and primary care of the patient.  A lot of it depends on where you work, and what your position is.  A hospital staff nurses role differs from a DON in a nursing home.  I guess our 'primary aim' would be to provide quality healthcare to the best of our abilities to our patient....thats a very broad generalization however.

The specific answer can depend on the viewpoint of the person asking the question.  Sounds like a broad topic for an essay for a school project.

" The primary goal of Nursing in the Healthcare Industry,today, is basically the same as it has been and

  should always be....Treat the patient as a person, not a profile.Suprisingly enough,there are the relative few,

 who do exist, that are,"there for the paycheck,personality,praise,pompousness,etc. however,the realism should be...

  ***Be there to care,repair and share, not to flaunt the faire!"