"When I was young, I used to admire intelligent people; as I grow older, I admire kind people." I could not possibly tell you how much I love and agree with this. To have both qualities in one person is such a gift as well.
Quite possibly, this is the cruelest thing that you could do to someone. Particularly when you don't understand it or only know part of the truth (at best), anyway. Let people live; let people learn. (Those are not my words but well said.