The Road to 2020 - American Elections By the way what motivates private entities to do well by consumers is competition. — fishfry
This is too rosy. They are also motivated to lobby. To externalise costs, cutting corners and basically arbitraging legal, tax and economic differences between countries. So they evade tax, or lobby for less tax, pollute where they can, or lobby for looser environmental regulations, make you work as much as you can and pay as little as they can or move to a country where they can.
What motivates corporations is PROFIT. They don't like competition at all. Uber is trying to buy a monopoly in the taxi business. Banks have been consolidating so they can get the implicit guarantee that comes with "too big to fail" (and save millions in financing per year). I could continue for 2 hours enumerating examples how corporations often do not work to our benefit.
The market mechanism is great in a mature, predictable and informationally and power balanced market. These markets are pretty rare though and even then there are usually a lot of hidden costs.