Oh no!!! Run for the hills!! Considering the blackmail undertaken by political interests $640,000 is probably a payoff to shut up a small fringe group. Will it work? Doutful. But it will make Wal-Mart seem friendly in the eyes of a large consumer group? Likely.
Wait a minute. Wal-Mart makes a symbolic contribution to increase market share? Who do they think they are?!? They're in it for the money? Oh, right, that's what companies do isn't it? Increase market share by any lawful means to increase profitability for their shareholders.
Perhaps you need to send them a letter asking for donations for your pet peeve. Who knows? If they think they could gain another group of shoppers without losing any others, they may toss some money your way