Anecdotally, that high variance seems to show up for a whole lot of things. I'm not sure why that would be the case, but two unfounded guesses would be biologic

Anecdotally, that high variance seems to show up for a whole lot of things. I'm not sure why that would be the case, but two unfounded guesses would be biological (females spend more resources birthing children thus males are more proactively competing, and high variance is a reasonable strategy) or cultural (it's more acceptable for males, particular young and adolescent ones, to be "obsessed" with some narrow skill or hobby).