I was thinking the same thing first, how come he would wait for a late night flight like me. However, I saw him on Larry king recently and I am pretty sure it was him, of course I cannot say 100%. According to the way he dress and the way he handles himself, there is no way he is just upper 0.1%, must be upper 0.00001% of the population. The interesting thing is: He wore fancy suit with a brown pointed cowboy boots. The boot leather was of excllent quality, probably that was why it didn't look weird with the outfit. I
He seemed approachable, but nobody went to talk to him. Some people remained curious and actionless just like me.
There was a guy following him around. I didn't notice until later I saw the guy walked him to the plane and seated him.