Burning Man has _always_ been for the rich. Poor people do not have that kind of spare time.
People that shouldn't be there (financially) still find a way to go; it's no different than many of the diversions we pursue in life.
How much do you think it costs exactly? Historically, as little as a few hundred could get you there. Less than the air fare many people spend to fly home for the holidays.
You also seem to be ignoring the people that can't afford to go that are sponsored by others as a gift.
We're clearly going to have to agree to disagree.
Your perspective of poverty may be a bit skewed. You think junkies can AFFORD a heroin habit?