People who have limited funds will try to make the most of the little that they have. Wealthy people do not think twice before discarding expensive items because they are confident that they have enough money to purchase new items. For example in a posh housing society the cleaner woman was given a nearly new dressing table with a full length mirror.
The broke domain investor cannot even think of purchasing a new dressing table, because the domain renewal expenses are very high and funds available are very limited. Similarly the waste discarded in a posh housing society will contain many items which can be used for many months or years or can be reused in a less wealthy household. Hence if waste management was handled professionally, a lot of people can make some money.