We somehow had a highly charged political thread directed at Heston's support of the NRA suddenly moved over to the film forum and I don't see how it belongs here. Then it got locked!
I didn't ever believe that Heston over-acted, he simply played every part in his own persona which he must have perceived as Moses-like. Although he was criticized for his portrayal of a Mexican cop in "Touch of Evil," the film may never have been made without him -- although Welles knew how to direct Heston and brought out the subtleties of the portrayal.
There is no person on Earth who doesn't do some good things and some bad things. Of course, it has to do with "how bad?" I know one can't help thinking about those who believe that a God can intervene and change destinies, but if they do, the NRA tooting (or touting!) Wingnuts would have to believe that Heston did something the big guy didn't approve of bad enough to inflict him with one of the most tragic diseases, where one is aware they are gradually loosing contact with the real world.