And that's interesting

Autism's "real cause"

Appears to be money. At least, that actually correlates. The supposed villain of vaccines, not as much.

What looks more like a "cause" is the age of parents (particularly fathers).

The most interesting theory would be whether the traits, or related traits, of autism could help make people rich in the first place. Things like high order memory and analytical processing do seem like they are useful economic traits at least (easily transferable to other skills). And so would visual or auditory processing (the ability to visualize 3 dimensional spaces for example).