A "billionaire philanthropist" is a person who is extremely wealthy (a billionaire) and donates a significant amount of their money to help others or make positive changes in society (a philanthropist). Full definition
Myrna Castrejon, 50, is leaving her position as a lobbyist and strategist for the California Charter Schools Association to lead Great Public Schools Now, a nonprofit organization established to carry out the charter expansion strategy, which was first developed by billionaire philanthropist Eli Broad and his foundation. (greatpublicschoolsnow.org)
This past Sunday, the personal post-war and contemporary art collection owned by billionaire philanthropists Eli and Edythe Broad, housed in Diller Scofidio + Renfro's meshed white box, opened for public... (archinect.com)
The power to direct education lies with politicians who consider it one of many special interests, with billionaire philanthropists who've been plowing policy changes that suit their business models through Congress for nearly a decade. (hechingerreport.org)