Che Guevarra did infact begin on a noble cause of unifying south america to improve it's situation however I think as with all men with power it corrupted him, he fell in to the trap of power, a power trap that is especially seen in Communist society where the social elite the top pinacle of the society live in great comfort whilst their people would have to pay for it. The major flaw with communism is it's "Everyone is equal but I am more equal than any of you and all of you put together" Had Che not seen the top stratus of Castro's Cuban regime from the inside I believe he would have been choosing another path for his crusade to unify the south america's rather than the Communist path.

The man did not start out evil he merely like all the others became corrupted by the power available to him.