There is some sense to what you say.  It would be interesting to see the women dress in a burqua or attire that covers even the whole body.  That would force someone to go by communication alone.  Then have the women come out again in regular attractive American clothing.  However the men would already know the names of the women based on what they had said in the previous meeting.  

I would like to see a masked mixer. Mardigraw style. Where the millionairs can't see the womens faces and have to choose based of personality.