I disagree with some of your points Jvesti.
First, intellect has no connection to sex, although males and females tend to specialize in different areas because of different family roles in the past. Men are doers and women are nurturers. Men rely more on reasoning based on observations while women trust instinct.
However, being intellectual doesnt mean you are a skinny wimp. Back in the days, smart cavemen would plot out strategies for capturing prey, decreasing the amount of energy used throughout the lifetime. Similarly, they would mate with females with intellect as the deciding factor to ensure that the children would retain these genes. Muscular cavemen would attract the entire plethora due to fitness, both reproductively and physically.
Nowadays, intelligence is often correlated with good looks. People with superior genetics often have higher standards and look for strengths in their partners.
Studying books and having intellectual discussions does not equivocate intelligence. In fact, it is often the contrary, as many of these people are simply hard workers that like to give the impression that they are intelligent.
You still have your stereotypical bookwh0re and bonehead bodybuilder, but people with intelligence + looks are on the rise.