Forum:Okay...I'm kind of confused.

In the Patriots section, there's something I'm having difficulty understanding:-

"At the end of the Big Shell Incident, Philanthropy discovered that all twelve members of the Wisemen's Committee had apparently been dead since at least a hundred years before the Incident (as early as 1900), and that one of them was "(their) biggest contributor" (adding fuel to the theory that Big Boss accepted the invitation)."

Why would it add fuel to the theory that Big Boss accepted the Patriots invitation if one of them is Otacon's and Solid Snake's biggest contributor? How exactly does it indicates that?