I had the same thought. I watched my dad go through brain cancer and he embraced Christ and died with the knowledge that he was forgiven.
We were never a church-going family, but were brought up with Christian principles and we pray to Him and try to follow his Commandments.
My father was at peace when he died.
Graham did a great deal by simply avoiding scandal, sticking to his primary work (evangelism),
and being accountable with money.
(would that others had followed this pattern...)