I think O'Neill believes Monsanto to be a far worse company than pg (or I, for that matter) do. It's an agrochemical company that does engage in strong-arm legal tactics, but at the same time, it's not on the level of IBM working with the Germans in the 1930's. O'Neill does have a point in that in a free society, consumers have a right to choose which products to purchase and which companies to support, and if they want to politicize that decision it is entirely their right to do so. pg would likely agree with statement. So the only real disagreement between the two would probably come down to how "bad" a company Monsanto is, in their view. pg obviously views it in a far more benign light than O'Neill does.
the "99%" talk is irrelevant. The 99'ers focus seems to be (or should be) on the parasitic nature of Wall Street and their close relationship to the Treasury Dept. and the Federal Reserve, and not on corporate ethics in general.