Perhaps, but in times past physical strength was probably as much or more important than intelligence. Note that the least intelligent also have less opportunities to pass on their genes. It would seem that there's a sweet spot where a mix of intelligence and strength is most favored(note the testosterone hypothesis in the article).

Now, however, intelligence is much more important to success. How long will it take for evolution to smile on those with higher IQs such that potential mates find intelligence to be the most attractive trait?