Carter no doubt has marketing behind the name and stellar executive teams at his various associated programs.
But as far as I can tell, he's the only recent ex-President who's kept up a similar pace of work and results since: everyone else finishes and retires.
If you're interested in where Carter came from, I can't recommend An Hour Before Daylight [1] highly enough. The man's a great writer, and he grew up in a fascinating time and place.
You've also got to give a lot of respect to someone who could have made themselves much wealthier, but said "No."
But as far as I can tell, he's the only recent ex-President who's kept up a similar pace of work and results since: everyone else finishes and retires.
His book was a decent read too. In a "some things are just right and good" way. https://www.amazon.com/Hour-Before-Daylight-Memories-Boyhood...