The Aga Khan is the head/Imam of the Ismaeli branch of the Islamic Shia followers ( 15 million ? ). As such he collects a contribution from his followers to be dispersed for good deeds. He is ( his family/parentage ) also a successful busines man .... and one may question the manner in which he actually finances whatever - both the life style and NGO, certainly for purposes of clarification.

Now that matter is worthy of journalistic investigation .... as for the helicopter ride - a bit more than the coffee and donut expense account scandal of eHealth fame, but missing the Tryrannosaurus Rex just behind you  .-) Like: How exactly does the Aga Khan finance his life style .... ??