They also send 5% of their on-line sales to gay/lesbian causes. Bah humbug.
Actual case: Wal-Mart (along with dozens of other retailers) donates 5% of sales initiated through the web site of the Washington DC Community Center for Gay, Lesbian, Bisexual and Transgender People web site.
So... It's only web site sales that come in through a DC site. They are paying a commission for services rendered. It's safe to by from WalMart.com. Your money isn't going to any GLBT organizations.