Neptune is the second of the generational planets, spending fourteen years in each sign. Everyone born within that period will have Neptune in the same sign. By itself, this placement is not the most important factor in your chart; however, it symbolizes what was going on in the world at the time you were born, and this has left an imprint on you.
You and members of your generation are each imbued with this particular energy, and in some ways it characterizes everyone born during this time. Each individual will express it in their own way, some more strongly than others. Neptune in Virgo (from 1928 to 1942) is a group that idealizes service and sacrifice. The appearance of efficiency is important; perhaps this is the generation that invented busy work! Many people of this group lived through the Great Depression as children, which imbued them with the values of getting along with very little and making do with what's available. Those are habits that are hard to shake.