Lefties

In discussing the possibility of our 8 month old being a lefty, I read a list of facts about lefties. The husband was pointing out that lefties tend to be smarter and more successful, while I point out some of the downsides, like this:  

The Boston Strangler, Jack the Ripper, and Osama Bin Laden were lefties.

To which he replied...."And also at the top of their field."