Your singular idea that profits are good neglects to realize just about everything I outlined about why Wal Mart is eventually destructive to the economy at large.
This is my least favorite kind of discussion, a vigorous debate with someone who doesn't even understand the premise that they are arguing against. Instead, I just get the rah rah Wal Mart is god of capitalism rhetoric.
A healthy economy requires that consumers have money to spend. Money to spend on goods and services from other people who are also looking to earn and spend money.
If there is money circulating in the economy, there is money to be earned. For there to be money in the economy, there needs to be good paying jobs.
If companies are starting to monopolize sectors of the economy in the manner that Wal Mart is, they are hurting the economy in the long run. Wal Mart takes money out of the economy by replacing good paying jobs with poor paying jobs. This eventually takes money out of communities, which is bad for the local economy.
If you don't understand that in order for an economy to function in a healthy manner, people need money to spend. If you can't understand that very simple concept than there is no point in even trying to explain why eventually people are going to look at Wal Mart as a company that ultimately harmed the economy, not helped it.