Board of directors, not an employee.
"FSF board members are not compensated for their board service, and are not permitted to receive any personal financial benefit from FSF funds or other assets."
https://www.fsf.org/about/the-role-of-the-fsfs-board-of-dire...
It is completely reasonable for a member of a board of directors (or advisors or trustees) of a non-profit to resign if they think the non-profit is going in the wrong direction.