It depends how you define "Good and Bad". Given his minor role in the events following his demise, I'd say his existence was negligent. Rasputin (1869-1916 (47) was alive during the beginning of WWI. It can be said who ever caused WWI subsequently caused the horrors of WWII. Rasputin "begged the Tsar to do everything in his power to avoid war." and said about WWI "If Russia goes to war, it will be the end of the monarchy, of the Romanovs and of Russian institutions."  Rasputin tried to avoid the inevitable; foolish, but not "bad".
Well I think that he wanted to stop the suffering in the first world war. "The Tzar's reign" excuse was probably just to get the Tzar out because he did not care very much for the people who died. And Mahatma Gandhi wanted India to fight in WWI and WWII and he was a man of non violence (although he did feel it was not the right thing (WWI) ).