what should be the goal when we talk of sugar control ?

when I saw this quote of the day in google,I was struck by how apt it is for diabetics .
few weeks ago suddenly my wifes blood sugars were high and widely fkuctuating and her PCp started her on actos ( I have my own reservations about this drug )
her Hba1c which used to be between 6 and 6.2 % went up to 6.9 %.
when I was trying to reassure her saying that it is still under acceptable limits she wouldnt take it and wanted to get back to her previous numbers.

so it is important to aim at the stars .

"It is a paradoxical but profoundly true and important principle of life that the most likely way to reach a goal is to be aiming not at that goal itself but at some more ambitious goal beyond it. " - Arnold Toynbee