Holy mistype. In GP post I meant to type "good for the poor because they are in debt", which is what Lyn uncritically forwards in OP as a (to be fair common) argument.

"lower classes also have more debt which gets partially inflated away in inflationary environments, and..."

Also the wealthy benefit greatly from debt-based financial instruments (corporate bonds for the companies they run, leveraged trading, forex, options) even if they aren't in debt personally.