Honestly, you're way too obsessed with pedigree in terms of companies. I've probably never worked for (or even applied for what people here would consider) a "high pedigree" (though not necessarily unknown) company over a long (and I think pretty successful by my standards) career.
I somewhat surprisingly got into a really good school undergrad and good ones grad. But got rejected by plenty too.
You win some. You lose some. You seem to be taking every long odds dice roll you lose as a personal affront.
