MacKenzie Scott promised she would give her fortune away “until the safe is empty.” That has proved to be harder than expected.Ms. Scott made that pledge in 2019, after her divorce from Jeff Bezos. At the time, her portion of the settlement, some 4 percent of Amazon shares, was valued at around $36 billion.Thanks to the soaring value of that stock, Ms. Scott is accumulating wealth faster than she can give it away. Though she has donated more than $8 billion over the past 11 months, primarily through direct gifts to nonprofits, today she is richer than ever, worth some $60 billion, according to …
