CEOs normally don't take a month off at a time, but Scott doesn't really run Wal-Mart. Thousands of people run Wal-Mart. The captain of a naval carrier can sleep a bit while the crew works.
The interesting question is not just Hillary Clinton's history at Wal-Mart, but why it's delicate for her to talk about Wal-Mart. Plenty of Democrats denounce Wal-Mart, but there are also plenty of people who need it, love it and rely on it.
People understand the whole low price idea, they know where to get low prices. But if they're looking for something that has a little extra quality, a little extra design, a little extra service, they're looking at places besides Wal-Mart.