There's nothing wrong with being proud of your high school and proud of scholastic and athletic accomplishments. If it makes the players "white elitists" so what?
I would have more pride as an alumna of Delbarton than as an alum of Bunny Hole Entertainment or Eye Candy Escorts. If that elicits jealousy from others, tough.
I'm merely saying that using the motto of the $25,000/year high school (that daddy paid for) is hardly keeping a low profile about the white elitism of their sport. Has nothing to do with being proud of their academic/athletic achievements. I guess they couldn't come up with a motto more reflective of Duke. I really don't care and probably most don't know how much Delbarton and Landon cost.
My position also. Nothing wrong with using the motto of an expensive school - it depends what the motto is. And there is nothing wrong with being proud of your school unless it is full of gangs and PC.