No hiring bar in the world is looking for the best 10 people.
It's just looking for people who are better than (some arbitrary skill level).
More men than women could bench press 160 lbs, but if your hiring bar is 'we hire people who can bench 160 lbs', you can trivially find as many people from either gender as you want.
Would your point still stand, if the baseline of being able to bench press 160lb was just a starting requirement, with a possibility that requirements can change at any point and you might need people who can be trained to bench press 260lb instead?
Also, if you are buying a car with the goal of being able to accelerate from 0-60mph in under 4 seconds, and you have to choose between two cars priced exactly the same, but one can do it in 3.9 seconds and another one in 3.1 seconds, why would you pick the 3.9 car over the 3.1 one, even though the 3.9 one meets your requirements of under 4 seconds just as well (assuming all the other relevant characteristics are equivalent or about the same)?
It's just looking for people who are better than (some arbitrary skill level).
More men than women could bench press 160 lbs, but if your hiring bar is 'we hire people who can bench 160 lbs', you can trivially find as many people from either gender as you want.