Socially useful residue of great wealth ...

Around the corner from where I live, there's a public library building which has been under renovation since 2020. (I looked up how long construction had been going on ... there was the pandemic and some kind of beef with PG&E. ...) The City powers-that-be claim this is nearly complete; I sure hope so. I use libraries.

Carnegie libraries were built with the ill-gotten gains of late 19th century industrialist/self-made robber baron Andrew Carnegie. He spent the last 20 years of his life on good works, funding 1,679 public libraries in the US, and more in Britain, Canada, and New Zealand. San Francisco has several, including a fine specimen in Chinatown.

Historian Heather Cox Richardson included Carnegie's story in her 250 to 250 project for the recent anniversary. It is read by Corey O’Connor, mayor of Carnegie's town, Pittsburgh, PA.

None of the current crop of billionaires seem to do anything so socially useful. Maybe if Elon succeeds with his rockets, we can shoot him off to Mars.