While Wal-mart has been doing their best to make sure that their prices are the lowest, which they are not always the lowest, they have been cutting corners to do so in come cases, and this in result is actually hurting their costumers. This is hurting their costumers because when they lower the price they are not necessarily giving you the safest product. Because they want their prices the lowest, Wal-mart pressures some of their manufacturers into cutting corners, which is sometimes unethical. An example of this is when Wal-mart sells products consisting of lead and other dangerous materials.
The state of California found several products containing lead in them and asked Wal-mart to get rid of them. A few, but not limited to were Kids Poncho and MSY Faded Glory Rebecca Shoes. These low prices that they bribe you with to come and use Wal-mart as your department store are not always worth it, they may end up hurting you in the end.
http://walmartwatch.com/blog