You're probably correct about indispensable M61, I assumed he'd said dispensable, and didn't verify it. However, it doesn't mean what you suggest in this context, or in the context De Gaulle initially said it. Being a high ranking military man, he'd be smarter than the average grunt, and also likely to be well versed in diplomatic language, which is the art of saying something without specifically saying it. Being military, he'd probably have a good Intel background too, so he'd be privy to the truth implied by General Jessup in "A Few Good Men", when he said, "You want the truth? You can't handle the truth?" So, on one level, you're right - there is no suggestion of conspiracy in that statement, but on another level, it's a blatant threat to anyone else who thinks they're indispensable saviours of mankind. Ironically, the term "conspiracy theory" was coined shortly after the JFK assassination by the CIA to dispel theories involving their involvement. Of course, he could have simply crashed because he was a mere mortal Bloggs pilot who lacked self-discipline, but that's harder to believe than the glaring alternative.