That alone won't cause people to have an 'uncontrolable need to accumulate everything'. Buying junk to fill a house that's too big is not the same as hoarding.
Please read the article.
Please read the article.
My fiancee's grandmother (from a post-Great-Depression era) wasted a fortune (~$500k) on ordering from late night infomercials and anything else they could buy (buried in the hoard were total gyms and horse saddles, stacks of unread subscriptions piling for decades, etc). Their house was a veritable hoarder home that only stopped filling when they ran out of money. I'll counter your "nuh-uh" with "uh huh".