Shift in philanthropy and the shift in non-profit giving

Please read Chapter 6 of the following book: Philanthropy In America by Olivier Zunz, then write an essay answering the questions below.
As we see the shift in philanthropy and the shift in non-profit giving, what are some reasons the philanthropic sector grew after the major world wars? Name at least 2 reasons and provide evidence and quotes from the book.

Other questions to consider: Based on the reading, what is capitalism's role in philanthropy as displayed in this chapter? Is it a positive aspect, or a negative aspect in your opinion? Do the ends justify the means? Were the "ends" even met?