EK has a unique chance for a not so nice exercise in self-promotion here... When the first UA flight lands in DXB, they put a film crew in place and line up a typical EK crew and walk them through the normal Dubai Customs Hall alongside the UA crew. (This already happens almost daily in Sydney.)
For added spice, they could hold a competition in the local rag to have people guess the difference if they were to add the ages of the UA crew together versus the total of the EK crew. Chances are, the answer might be in four figures.