He's different from other Sorcerers and sorceresses

Since he grew up isolated, then with a village, then with humans; he's learned to have compassion and kindness

Other sorcerers that grew up near each other. Acting like snobs with their untold powers and becoming stronger each day. Flaunting their gifts and rubbing it in the humans faces

Maybe it's why Seto can beat them all into the ground, cause he knows when to show mercy and when to kill without mercy