It's a cynical photo-op for which he deserves no credit!
Harper could have just sent the plane. There's absolutely no reason for him to be on it. In fact, he takes up space that an evacuee (say one wounded by Israeli shells) might use if he wasn't there.
Cypress might need the resource that Harper's plane represents. It does not need Harper.
He could have flown home on WestJet, fucked up his back crammed into one of their "seats", and eaten crappy food, like the rest of us.