No one wants to admit they come from privilege, if for no reason other than it makes whatever you have achieved in your life seem relatively unimpressive. Case in point: Samantha Henig's take on being a not-massively-rich student at Trinity - the Manhattan prep school, not the preppy Connecticut college:
For my junior year of high school, my father took a one-year fellowship in Manhattan, and my mom and I tagged along. Included in his package: a subsidized apartment for us in a doorman building at 64th and Third (which I learned within my first week did not qualify as the Upper East Side) and money to help my family send me to private school for the first time in my life. I chose Trinity on the Upper West Side because it seemed the furthest from what I had known. I was coming from a packed and diverse high school of 3,200 students, more than half of whom were black and Hispanic. At Trinity, there were 100 kids per grade, and most of them were white and very, very rich. [....]
[...] I couldn’t come close to affording the clothes and restaurants my Trinity peers took for granted. (And unlike [fictional scholarship student] Anna, whose only non-Langdon friend is a banker who’s also living the glamorous life, I still had my public-school friends back home to keep me honest.)
Obviously we are not privy to the whole story, but from the information given... if your father is not only present in your life, but has a fellowship prestigious enough to bring him perks that include a posh Manhattan apartment and private-school tuition for you, you come from privilege. Not the same kind of privilege that permits Gossip-Girl-level excesses, but privilege all the same.
If you're going to use your own socioeconomic background to make some broader point about how the world works, you have to own up to what that background was, not relative to the world's three richest people, but relative to, I don't know, some slightly larger set. It's not that the subtle differences between Manhattan prep-school's upper and upper middle classes, the ones that feel massive to insiders only, should not be explored for all they're worth (although I'm not signing up for that task). But if that's what you're describing, and you're telling it from the 'lowly' upper-middle end of that spectrum, you sort of have to be clear that you know you didn't grow up poor, or even, in all likelihood, middle-class.
And then the idea that public-school friends are some kind of magical force keeping one attuned to what really matters in life just strikes me as unlikely. Is teenage materialism so fundamentally different if it's kids with $900 designer handbags sniffing at those with $80 North Face backpacks than it is if the North Face kids feel superior to those whose backpacks are off-brands? Clearly the former makes for better television - 'rich' being best indicated by Big Shiny Things, but as far as I'm concerned, the difference ends there.
Anyway, part of me feels for Henig, because I too grew up poor-relative-to-some-really-rich-Manhattan-prep-school-classmates, and I understand the temptation to present this sort of upbringing as one from which it's still possible to emerge self-made. But I tend to think it's not.