Intelligence is not just about what you know, but how you use what you know to navigate and understand the world effectively.
This is not the case. Someone can be incredibly intelligent, and do nothing with it. Similarly, someone can have a huge amount of knowledge, and do nothing with it. Intelligence doesn't speak to application - only application speaks to it. Perhaps if the intelligent that do nothing knew the right thing, they might start to apply their intelligence ;)
Would you serve as a guinea pig…?
Absolutely.