They were often seen as week and emotionally unstable. It also was in the religious beliefs that women where in-superior to men and shall not be accounted as anything equal to. With these beliefs being instilled into the generations of there the years it was never completely purged from this that until the first and second World War, when woman were needed to work allowing the women's revolution or Feminist movement.
The argument that Carnegie makes about the uses to to which the great fortunes of industrialists should be devoted is that he argued that the wealthy must live modestly and make use of their fortunes for the elevation of all civilization.