Yes I think Carnegie's ideas about the problem of the rich and the poor are still valid.
According to him there is a wide gap between the rich people in the society and the poor people. The poor are not able to live in the same conditions as the rich.
This idea is still very much valid today because a wide gap still exists between those who are poor and those that are wealthy.
The gap between wealth and poverty becomes a problem when the poor are unable to afford basic necessities such as food, clothing, shelter, education, electricity.
