I think that Soros used the analogy as a hyperbole, to underscore why Aby Ghraib scandal created such a powerful wave of indignation in the world. He is much too intelligent of a person to use a direct comparison between these two events.
However since we are talking about George Soros here I wanted to point out one thing. I noticed that George Soros being vilified in the conservative media for putting his money where his mouth is - even though conservative media, if they really are pro-US security, should sing praises to the man because
he did some tremendous things to protect the security of the world and the U.S.In the 1990s, after Soviet Union collapse, he prevented thousands of
Soviet scientists (including nuclear scientists) from searching for jobs in countries like Iran, Iraq, and North Korea. He could be a single reason why we didn't actually find any WMD in Iraq

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One of the first international organizations to give aid to Russian science was Hungarian-born U.S. financier George Soros' private International Science Foundation. The ISF program, which started in 1992, disbursed more than $100 million in grants to some 25,000 researchers in the former Soviet Union.
QUOTE
Soros also helped fund the Civilian Research & Development Foundation (CRDF) located in Arlington, Va. (C&EN, April 7, page 45). Since 1995, CRDF has supported joint research projects between former Soviet Union defense scientists and engineers and their American counterparts, with grants ranging from $10,000 to $80,000 per research team. Soros provided a $5 million grant to the National Science Foundation to release a matching amount for CRDF that Congress set aside in the Department of Defense budget.