Haha, maybe the bigwigs, but I don't think the flight attendants are the greedy ones. I think the flight attendants would be nauseous in this case, and not from motion sickness.
I remember walking through that particular security check at Stansted a couple of years ago on the way to Edinburgh. I just walked past the whole shoe-screening apparatus and went straight onto the metal detector and hand-luggage scan. One of the security staff asked me to go and get my shoes checked. I said "I'm not wearing any", so he looked down, noticed I wasn't lying and then let me go on my merry way. I must have saved myself a good few minutes.