Yeah... I was just reading the link to the wiki page about multiple intelligences, and I knew I had some wrong assumptions in my prior post.

Defining intelligence is tricky, and I'm not claiming to know the best definition.

I think it's exactly the point that street smarts is an expression of intelligence. The scenario I was trying to set up was that it's the same person, with the same intelligence, either way. They may have stayed in school or dropped out, but that doesn't change whether or not they're smart. It only changes what their smarts will be focused on.