This has not been the case these days, to be honest. While a pedigree helps, the playing field for investment has been much more level than, say, a few decades ago. Harder, sure, but exponentially more so, definitely not.
Without pedigree, you get a pitch if you have something real and are lucky
With pedigree, you can pitch science fiction and get funded.
It is extremely rare that I've seen such grotesque errors and this not have founding members from the MIT/Standford-esque crowd. A notable example is Rabbit R1, who clearly pitched science fiction, but then again Jesse Lyu has connections to Y-Combinator. On a side note, I lost a lot of respect for several researchers when I saw them promoting or talking about how impressive the R1 was after the announcement. I don't expect the public to be able to tell what's Sci-Fi (though there were clear signs of demo faking), but researchers (being one myself) should have clearly known such claims required orders of magnitude more advanced tech than what was currently available.