It's possible. Although for me to have been the "clear leader" you probably would've had to remove a number of people who weren't in the top 2-4 as well. And even then I might have just thought of my family as unusually great, because there'd still be my terrifyingly smart younger brother.

Silicon Valley could be an odd place. I actually grew up in a neighborhood where most of the kids were of Indian descent (we played cricket and a game from India that I just found on Wikipedia called Kabaddi (I can't believe this is played professionally) in addition to standard US games). I didn't think to ask then, but I guess they were mostly children of immigrant software engineers? I haven't really lived anywhere other than the SF bay area yet, so I don't have much to compare it to. Right now I'm thinking I should prepare myself for way more stupidity and racial homogeneity.