I think society values good intention way too much. This man fought his entire life for what amounts to Marxism with robots. His intentions may have been good, his heart in the right place, but his ideas were bad, and if implemented, they would be disastrous.
If we judge him by his intentions, he was a good man. If we judge him by what he wished upon the world, he was a horrible human being. Though we should keep good intentions in mind, I strongly believe that we should also judge the outcome of what people are proposing.