I think that without an outlet for the energy he will either find himself masturbating profusely, or having a lot of wet dreams.
Thos people you mentioned all ahd goals and dreams so overwhelming that sex didn't enter their mind as they weren't at all interested in it.
If they were take the time to go find a woman, court her, seduce her, then sleep with her and maintain the relationship. It was time they weren't spending on their dream.
They would have felt like they were wasting time. I understand this feeling well, because since I started all of my own business persuits, I have basically stopped dating because I have other things I would rather do.

Never thought I would say that but it's true.
When a girl emails me or rings me wanting to see me I feel like it's a tough descision because to be frank I would rather be working....