Wal-Mart is a great example because they use their size to get tax breaks for 5 years when "honor" a city with their superstores. Their business practice commonly uses threads to lower costs, and they treat their employees like crap. They leave in their wake piles of crappy, substandard excess and empty mom and pop storefronts. I got a Wal-Mart gift card once and I gave it back. I needed the money at the time, too.
