Also, don't say comments like "It's just too big and famous to be illegitimate"...  If someone is so naive to think so, think about Madoff, or closer to my home town (in Quebec, Canada), Vincent Lacroix (Norbourg scandal), where even the highest and most serious banks have been duped.

As caratheodory say, don't underestimate people's greed.

Just think about all the corruption, from the small to the most elaborate plot (just look at the news surrounding the construction industry here in Quebec, with the "Commission Charboneau"...  Very elaborate system put in place by the Italian mafia...  Freemasonry secrecy at it's best!).