I've observed lots of people being bad at those things, intelligent or not. I'm at least average at all of them. Granted, I have face blindness, but that has, thus far, been entirely insignificant, and I didn't even notice until I encountered the term researching something else - and that is likely to be related to the fact that I didn't start wearing glasses until -far- too late in my childhood, and so have insufficiently trained my brain to recognize faces in the first place. I've gotten gradually better at recognizing faces as I've expanded my social circle.

This kind of theory is appealing because it seems "fair". I'm attractive, intelligent, tall, charismatic, good at everything (except welding) I have ever tried. My observation is this: There is no fairness, at all.