There are also
people who were highly achieved and contributed much to the world, who were abstinent/celibate; they seem to dominantly be in intellectual type of fields as opposed to highly socially oriented fields.
The key might be extroversion more than anything else. Business and politically oriented people tend to be extroverted. Sex is a social activity. I think the drive that makes people want to be very social with people, tends to also make people want to have sex with people. I've known a number of introverts and extroverts, and it seemed the introverts were always less sexually motivated.