Have you ever worked with someone who is more than one standard deviation smarter than you are? I highly recommend the experience. I have watched people go from novice to better than I am in just a few years, and I have rather a lot more than 10,000 hours in my field. Hell, I have at least that much in my sub-specialization.

Mentoring people, especially if you can mentor people who end up learning faster than you did, who end up becoming better than you are is extremely rewarding, I think, and humbling.

I mean, experience is important, but intelligence can act as a multiplier on experience. It's like anything else; Everyone, if they start lifting weights, will get stronger. But, some people will get stronger faster, even if they lift the same weight the same number of times.