Finance is diverse.
If you want to be a portfolio manager who makes, say, macro bets, yes, it's very much up or out. But if you want to be a quant polishing fixed income risk management models in some bank, it's a pretty standard corporate job.
But if you want to be a quant polishing fixed income risk management models in some bank,
What kind of social skills does that require? My impression is that this is the modern equivalent of court astrologer and requires some similar skills, i.e., cold reading.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.