Earlier quoted context omitted.
Of course a lot of those players have in turn gone on to gambling and hedge funds.
I often wonder about this in the context of musicians and actors. You would have to be a fool to pick such careers, as the prospects are so dim. Yet because of this dimness the selection pressure is very high on the pool of contenders. So our best actors and musicians are fool/geniuses. Which implies the most innately talented potential musicians and actors are working at a hedge fund or Google DeepMind. And perhaps…
People wanting a more reliable job can work in any field with reliable jobs. I dont understand why you picked the most prestigious ones. Aren't they more likely to be farmers or nurses or teachers?