If you are talking about corporate responsibility, this is a fryingpan and fire comparison. The site you reference appears to be about financial advisors, which aren't really related to the credit card question at all.

Citigroup, on the other hand, has had an ongoing disrespect for private data. It tried collecting cardholders' specific buying habits and selling the data to retailers. It has a long history of selling off private data, and even advocating laws to reduce privacy!

Now, don't get me wrong, I agree that Amex is a slimey operation, but Citibank is one of the few which is worse.