...albeit, he doesn't spend any time here characterizing the others.
Philanthropy actually the bent of his publication, Inside Philanthropy.
...founder & editor in chief, David Callahan
His books include "The Givers: Wealth, Power, and Philanthropy in a New Gilded Age."
https://www.insidephilanthropy.com/author/callahan-demosgmail-com
Callahan launched the news website Inside Philanthropy in early 2014. The site's tag line is "Who's Funding What, and Why." It covers news about recent gifts by foundations and major donors, as well as the world of fundraising and trends in philanthropy. The site also includes profiles of funders to help nonprofits find money and publishes a daily newsletter. In addition, it issues its own set of annual awards, the "IPPYs," that include categories such as the "Philanthropist of the Year" and "Foundation President of the Year."
Callahan, David (1990). Dangerous Capabilities: Paul Nitze and the Cold War. New York, NY: HarperCollins. ISBN 978-0-06-016266-5.
Callahan, David (1994). Between Two Worlds: Realism, Idealism, and American Foreign Policy After the Cold War. New York: HarperCollins Publishers. ISBN 978-0-06-018213-7.
Callahan, David (1998). Unwinnable Wars: American Power and Ethnic Conflict. New York: Hill and Wang. ISBN 978-0-8090-3064-4.
Callahan, David (1998). State of the Union. New York: Signet. ISBN 978-0-451-19725-2.
Callahan, David (2002). Kindred Spirits: Harvard Business School's Extraordinary Class of 1949 and How They Transformed American Business. Hoboken, N.J.: J. Wiley. ISBN 978-0-471-41819-1. OCLC 50630480.
Callahan, David (2004). The Cheating Culture: Why More Americans Are Doing Wrong to Get Ahead. Orlando, Fla.: Harcourt. ISBN 978-0-15-603005-2. OCLC 858674447.
Callahan, David (2007). The Moral Center: How Progressives Can Unite America Around Our Shared Values. Orlando: Harcourt. ISBN 978-0-15-603298-8.
Callahan, David (2010). Fortunes of Change: The Rise of the Liberal Rich and the Remaking of America (1 ed.). Hoboken, N.J: Wiley. ISBN 978-0-470-17711-2.
Callahan, David (2017) [2010]. The Givers: Wealth, Power, and Philanthropy in a New Gilded Age. Alfred A. Knopf. ISBN 9781101947050.
https://en.wikipedia.org/wiki/David_Callahan#Career