Madoff/Greed

Is it apparent to anyone but me that the people who invested with Madoff were wealthy to begin with and their greed for even more got them into this deep water. I'm not in any way excusing his swindle, but isn't $3,000,000 enough for you to live? Must you make it become more? Why? GREED GREED GREED. Greed has broken our general economy and greed broke these people. Oops.