Being right-handed is the norm for races that had dominant and non-dominant hands. This was due to the balance and orientation of physical and metal constructs. Right is generally considered a grounded physical force and used as the dominant hand. The complete reason is highly complex: the simple explanation is that Reignore is on the right half of the Trioré symbol and Reignore governed the physical aspects, so there for the right side is dominant on aspects of the physical domain.