Is Newt Attacking Capitalism?

Question for those that think Newt Gingrich is attacking capitalism:

Can a person be a part of the free market system and capitalism and then do it in a unfair or corrupt way?

We have seen it in Enron and Bernie Madoff.  If Newt was critical Ken Kay or Bernie Madoff for stealing money and the future of their employees would that be an attack on capitalism or on the individuals and the way they participated in the free market?

Mitt Romney has a terrible Governing record from a conservative stand point. So he is trying to run solely on his business experience. With that fact, it is completely fair to ask what type of business man was he.  Are his business dealings reflective of the type of leader we want to represent the people?  What has Mitt Romney and Bain Capital done that we need to know?

The free market system is the most successful economy in the world's history.  But whether you have a free market system or socialist system it all comes down to how people operate in the system.

Today, would it be an attack on capitalism to criticize Enron or Bernie Madoff?