Actually, it's just the thing about ACS guys being snobbish. And
it's not just a problem between ACS and neighbourhood schools, that
I can gurantee you. In stature, ACS guys are in no way really the
best, they're not all the richest, and in terms of being elites
they are outclassed too.
It's really just that attitude and culture of the people.
If you're rich but you don't flaunt and show off your wealth,
people won't make an issue out of you.
You can say ACS people adopt a very elitist attitude, but not
because they're richer, smarter or anything. They just think that
being from ACS makes them elite, and that being from ACS(I) gives
them the right to look down on others.
The SJI fraternity is just as strong if not stronger than that of
ACS(I) or ACS(Barker). Yet no one complains about SJI guys being
snobbish.