More charity money comes from ultra-wealthy
Bill and Melinda Gates brace the rain as they visit the township of Khayelitsha on October 25, 2019 in Cape Town, South Africa.Brenton Geach | Gallo Images | Getty ImagesA version of this article first appeared in CNBC's Inside Wealth newsletter with Robert Frank, a weekly guide to the high-net-worth investor and consumer. Sign up to receive future editions, straight to your inbox.While donations to charity have been rising, the pool of donors is shrinking, as philanthropy becomes hyper-concentrated among a small group of…