I really don't think intelligence is the most important part of innovation. That sounds silly, and you obviously need some baseline of intelligence and having more certainly helps. But insights come from context and having the right dots to connect. Talking to the right people, knocking the right rocks together, reading the right books, and having the courage to act on the insights that show up.
Context and action seem to be the most important parts of innovation to me. The reason mathematicians come up with incredible and novel mathematics isn't because they were just more intelligent, it's because they were the ones looking and the ones who had spent time building up their knowledge around mathematics. They could have been just as intelligent but raised to work on a farm instead, having none of the dots, context or impetus to make novel connections in fields that seem driven by intelligence.
Context and action seem to be the most important parts of innovation to me. The reason mathematicians come up with incredible and novel mathematics isn't because they were just more intelligent, it's because they were the ones looking and the ones who had spent time building up their knowledge around mathematics. They could have been just as intelligent but raised to work on a farm instead, having none of the dots, context or impetus to make novel connections in fields that seem driven by intelligence.