"The advertisements from Christy Walton are in no way connected to or endorsed by Walmart. She does not serve on the board or play any role in decision-making at Walmart," the company said in a statement to CBS MoneyWatch.

Walton has also made clear that she paid for the ad herself, and that it represents her own views.

I 100% believe billionaires shouldn't exist, are a millstone on the neck of society and progress. I'd also support any action that would take care of the problem... But I don't think you link shows much more than a single deplorable person experiencing a twitch of morality.