Hi
landing page has nothing to do with value of the domain.
some may look better esthetically, but landers don't sell names, as the interest if any, in the domain name....came before they landed on the page.
i just think that after seeing many health type names with such "callings", especially in tv commercials, that they fit better with .org
still, that doesn't mean your domain name is worthless.
as is, the .org owner could be a potential buyer for your name.
imo...