[pinealservo]

> The same sort of thing applies to wealth, for example, but nobody tells the poor to just acquire some will power and start spending less than they earn.

Maybe you've been reading particularly good advice about wealth, but I can assure you that far more than "nobody" tell the poor to just acquire the willpower to spend less and earn more.

I agree with your overall point, but I think the same issue plays out in the field of economic behavior of individuals as well as the eating behaviors. People who are advantaged in either scenario don't realize it and don't understand their own advantages, thus giving bad advice to the less-advantaged even when they mean well.