Norman Bourlag's life work was to develop and distribute high-yield crops. He's a Nobel peace prize winner and is often credited with saving over a billion lives. Monsanto is carrying on his work at a scale he always strived for.
People in this field is deeply passionate and morally involved in their work. Read the responses from this Monsanto employee at IAMA[2] -- his earnest attempts to explain his morals and his rationale speak for themselves. These people aren't even naked capitalists (not that I have any problem with that) -- they're empirical environmentalists and humanists.
I'm kind of disappointed to hear Monsanto shrilly decried here. Modern ag is a deeply interesting and controversial topic, but that Vanity Fair piece is just rhetoric and linkbait.
[1] http://www.youtube.com/watch?v=X1w4zM4SouM [2] http://www.reddit.com/r/IAmA/comments/d83i9/i_work_for_the_m...