Well since this thread has been bumped, my 2 cents.
No crime should be justifiable on the basis of their success. Period. We should feel empathy for those victimized, not apathy. That these people were naive to begin with just makes the situation a sad and pathetic one.
My mom almost fell for a phishing scam once. She literally was about to /register/ with this bank that had "lost" her information, because she didn't have an account with them. My mom is not a stupid person. But she is technically challenged (she thinks that turning off the monitor means shutting down the computer, she can't tell the difference between a URL and email address, etc.), but she is by no means a stupid person. Nor is she rich by any stretch. So maybe until you realize how people close to you can be victims do you not see how no one deserves to lose their money to what amounts to professional con artists.