That's not by choice, but by necessity. Just because those "airline pilots" aren't airline pilots currently, that doesn't mean they don't still have financial responsibilities.
I don't think you understand what it's like investing approximately $80,000 to $110,000 into a career only to see any hopes of a stable income being swallowed up by the market. I realize I am not a market analyst, and you may very well understand the stock market dynamics a hell of a lot better than me. That being said, somebody is making alot of money off of this and when most companies point that blame towards speculators, I tend to agree.