The first thing that really struck me about this part was the remedies for imaginary illnesses. I believe a lot of medicine is “blagged” even now; it’s typical of Dickens to point out people’s making money by creating things to suit their purpose, especially as this was how he made his own money.
I love the image of the men walking around with pendants jingling like cows with bells on. Wealth can only be relevant if you’re showing it to other people and it is a double image of their wearing jewellery and the jewellery itself drawing attention to them.
The carriage rattling through the streets is a nice contrast with the tinkling jewellery and adds a lot of atmosphere to the scene. This makes the contemptuous chucking of a gold coin as compensation for killing a child even more harrowing. It is then brought round again in a nice circle with the jingle of the coin hitting the carriage floor.
The crowd of rich cows is then contrasted with the crowd of poor sheep in the country. This is interesting in that both animals are used for meat and to make clothing. Therefore when it boils down to it, neither is more useful than the other.