"You have to judge a man as a whole, not just a small part."

It strikes me that the problem here is that some people are feeling it necessary to do just that, judging the man on all the things he did in 100 years, especially the ones they don't like from the later years.

Perhaps if you are "judging" a man you do it on that basis; but when you are not seeking to judge, but to appreciate him, maybe it's better to concentrate on the bits that you like best, and set aside the ones you don't.

"Judge not, lest you be judged."