As I'm sure southside will verify, since to use membership to further one's own agenda is against one of the prime tenets of Freemasonry, to do so would be so obvious to other members as to be self-defeating.
From what I've been able to learn about the Freemasons, and as much as it pains me to agree with him, their aims are entirely charitable, and their social activities are not that far removed from your average golf club.
But with unusual togs.