Here's some quick research you could've done to test YOUR hunch:
"These numbers actually understate the wealth of America’s top 1 percenters. Each Fed Survey of Consumer Finances, as Kennickell notes, specifically excludes from the survey sample any of the people wealthy enough to make the most recent Forbes 400 list of America’s richest. In 2007, the Forbes 400 held a collective net worth of $1.5 trillion.
But in 2007, even without the fortunes of the Forbes 400, the top 1 percent still held a whopping 33.8 percent of America's total family wealth. Families in the bottom 90, all together, only held 28.5 percent."
http://www.alternet.org/story/137540/solving_the_mystery_of_...
As for any dark conspiracy, I'll say it again -- just because it isn't a part of your reality doesn't mean it isn't real.
Point being, the people surveyed clearly didn't have a principled reason for thinking 30-35% was an "appropriate" amount of wealth for the top quintile; they hadn't done the math. In light of this, I want to ask you: do you have a principled argument as to how much wealth the top 1% or 5% or 20% should have?
The point is that the same people doing the same things are getting much more than they used, and it's a direct result of actual policy changes. I'm not sure why identifying these people as individuals and professions is all that relevant. But do I think that tech entrepreneurs are a minority in those few million people? Yes. Call me crazy.
I think the real question is: Do you have reason to believe that the pretty well-documented overhaul of tax, monetary, and regulatory policy that has taken place in this country over the last few decades didn't actually happen?
If so, that's a conspiracy I'd love to hear about.
Instead I'd prefer to turn to studies of social class, such as Thompson & Hickey 2005 [1]. This study defines the upper-class as "largely constituted by the heirs to multi-generational fortunes".
[1]: http://en.wikipedia.org/wiki/Social_class#Thompson_.26_Hicke...
It wouldn't have taken long to test that hunch.
http://www.forbes.com/wealth/forbes-400/list
The superrich basically consist of company founders, their kids, and hedge fund managers. So unless your dark conspiracy = hedge funds (in which case why not just say so?), there's no evidence of it.