It IS an important job! Without us, the disabled, the elderly, and the lazy enough to become 600lbs couldn't traverse large airports, and fly to various cities. We do a lot of hard backbreaking work for often very little money.
So the next time you fly with grandma, slip your wheelchair assistant a $20 bill tip. Unless they were spectacularly awful at their jobs, and tossed your grandma down a flight of stairs....
That would be awful!!!! Still though.....maybe like $5?