Comments from the video:
"Jimmy is making such a huge change in Africa by saving peoples lives and giving them fresh water. Wow!"
"Planting back rainforests, Cleaning the oceans, fighting world hunger, and helping with the water crisis in Africa. One man making such a difference keep up the great work real role model."
"Instead of giving speeches and talking nonsense, he's actually doing things. Keeps it up brother."
https://www.youtube.com/watch?v=aSQUg-h8G4s
I don't think they are. Their house looks pretty middle maybe lower middle class. Probably a <150k house (when they bought it) in North Carolina.