There might be some exceptions for those working on Oculus, but it's not a blanket exception.
It used to be similar in finance, where getting that internship at Mckinsey/Bain/BCG or in BIG4 (deloitte, ey, kpmg, pwc) meant something - in some countries it was like 1000 candidates per 1 place. But I feel it is much fewer nowadays.
I'd imagine that 4 years from now having OpenAI on your resume will be a much better signal than Google, if only for the reason that there are only 400 people who can claim OpenAI as their background.
This is why prestigious universities don't invest in increasing class sizes. The student demand is there. There is no lack of world class professors to hire, and larger facilities could be built. An Ivy league is capable of reaching 10x enrollment in 20 years while raising tuition and providing the same quality of education. However, within 50 years the brand will carry less prestige.
Engineer productivity mattered a lot less, because straight out of university it’s not like I knew enough to be productive from the start anyway.
Compensation-wise, finance tech pays a lot better, although is most cases it is a WLB tradeoff.
IYKYK
If it matters I'm in my early 40s and I have left money on the table in the past because of said idealism, but if I were to be a 20-something again and especially in today's market I'm not sure I would do the same thing.