I don't think intellect is much of a factor in getting laid. My bet here is that intellect, or at least use of intellect, has an inverse effect on success in that area :).
The biggest difference between my example and your examples is that it's a job. This talent pool is using their working hours (and quite often most of their waking hours) pursuing a goal that provides almost nothing to society.
The "finance industry" that we're talking about here is self-serving and in most cases is having no positive relationship with the lights or the supermarket.
The transportation industry, by comparison, has a profit motive but ultimately turns human creativity and intellect into things that arguably make life better for a large number of people.