Hitler may have been insane and not culpable in God's eyes - that does not mena we would not have been justified in executing him or putting him in prison.
Mrs. Ritchie may be so fooled by the devil that she is not culpable in God's eyes - or else she may convert at any time prior to her death and truly repent of the wrongs she has done. No one ends up in heaven because they actually deserve it - rather it is because they chose to accept the gift of forgiveness puchased in their name by Jesus. Similarly those who do not know Jesus but manage to live in accord with his will to the best of their ability can take advantage of the salvation purchased for many and available for all by virtue of their choice of virtue and self-giving.
I know you didn't ask me, but I'll answer--if you murder 11,000 people you can still go to Heaven. That is, if you truly repent and accept Jesus Christ as your savior, like he wants you to.
But on the other hand, without the blood of Christ, a single sin can keep you out of Heaven.