Has capitalism failed the world?

So asks this article on the Al Jazeera website:

http://www.aljazeera.com/programmes/headtohead/2013/06/201361294652861958.html

I think it is the people of the United States of America who have failed the world. We failed to punish the criminality of the bankgangsters and the corporations, and we failed to meaningfully regulate the greed that led to that criminality. And we failed in that regard because "our" government was bribed by those bankgangsters and corporations, and we failed to hold them accountable, too.