Chapter Designations or Guards, are used to denote you Chapter, and to keep from losing your Badge!
I am glad you did not wear your Badge to the interview!
Why, you may ask?
Your accomplishments will be on your resume. I always put my Org. on the top and what I did with them.
Most are not interested in what Org. you belonged to by your Badge, but what you did while you were there.
Many of the Top people in the World after College may have been in a Greek Org. so have a feeling unless you were mortal enemies! Then OOPS!