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Never heard of a "Dark Society", so cannot comment.
The "openness" penny dropped bigtime in Freemasonry a few years back and now there are occasions when non-masons are able to attend what used to be closed meetings. Let us not forgt the huge sums of money raised for charity too. It wasn't that lojng ago my lodge donated £3000 to a Dover Autism group.
All this stuff about dodgy dealings etc., well, that's old hat and much less prevalent than back the 60's and 70's.
Lastly, a big part of the employment process is finding common ground with whoever is being interviewed. That common ground could be anything, a passion for stamp collecting, singing, TA work, masonry, or even support of the same football team. I once struck a chord with a supporter of Guildford City who was interviewing me for a job many years ago. I supported another non-league team at the time, Ilford. This guy, as I found out later, was the butt end of all the footie jokes in the office and having another guy on his side as it were was a bonus to him, and me. I got the job and neither of us were masons.
All this stuff about masons is so old hat and folks really ought to know better and/or move on.