Originally Posted by
ScottCommutes
Here's a modern example. Look at what poor mom pays for individual servings of Tide at the laundromat vs. what rich mom pays for the same serving from her giant container of Tide from Costco. Poor mom likely knows the big Tide is a better deal, but she doesn't have the money to tie up in laundry detergent, or a Costco membership. Even if she did, she's not lugging a giant Tide to the laundromat.
Some urban areas with no large supermarket, the poor, who can least afford to pay for food, pay much higher prices than those in the suburbs, with more money and also large supermarkets competing for business.
When you are an executive or engineer at a company, sales reps from suppliers are always taking you to lunch, on their bill. Same for lobbyists courting lawmakers, all well-paid.