I would not want to work for a CEO who believed for years that "voluntary pedophilia" doesn't harm children. If I were someone at the FSF with any amount of power, and I found out about that, I would immediately work to get him ousted, or, failing that, I'd quit.
And it's not like this is the only thing he's done; he's been creating a hostile environment for women at MIT for decades. It's about time he was held to account for that, too.