We nerd types have made this mistake for the last 75 years or so. This mystique about chess has been completely misplaced in my humble opinion. At first the claim was that Smart people played chess, therefore if you made a computer that played chess well it would be Smart. That turned out to be hilariously untrue, but durable: nerds were finally relieved of their arrogance after about 5 decades only when it became cl…
But more to the point of your comment, it makes sense to make these claims about chess in particular because chess more or less is exclusively about pure concentration. There is no physical ability you must develop like you would usually have to for sports or music or gaming.