Oh for sure. He pales in the shadow of those that you have mentioned.
As an aside, I went to Hiroshima, to the Peace Park. A very moving experience. And you know why the USA decided to unleash that bomb, and the one on Nagasaki? They wanted to end the war, yeah. And the reason they wanted to end the war? It was costing too much money.
If you want to look into evil, then surely money is worth looking at. But looking beyond that, what does money bring? Security yes, because our society is run upon money. But above all else it brings power, and therein lies the weakness in humanity: the desire for power. Power corrupts those unable to wield it, and are there any amongst us who can?
At this point I suggest a read or reread of Lord Of The Rings (Book preferably, Movie optional).