The Kingdom as a whole considers non-magical species inferior but, unlike other magical beings, feels it’s their role to use their powers for good and to help others (if only to stay well away from the magical realm so it is not polluted). Naturally the Kingdom gets to define what good is.
The rules for coming across other species that turn out to be magical after all is different – be cautious and have your wand ready to fire (though the more flirtatious sprites have had a lot of fun coming up with some dodgy jokes based on this rule).