Right or Wrong?
It's quite simple really. So simple, in fact, that there's really no room for debate.
One believes in God. That salvation is an experience that can be realized through reading the Scriptures, which are Truth and a moral compass by which to live.
One believes there is no God. That "this" is all there is, and we're nothing but worm-food when we die, with a total end of consciousness.
If the one who believes in God dies, and the unbeliever's reality is true, he or she has lost nothing, having simply lived a good life.
If the unbeliever dies, and the believer's reality is true, he or she has lost their chance at salvation, with eternal damnation to come in the final judgment.
Only one reality can be true, but by the time the truth is fully realized, there will be no chances left for bet-placing.
Which gamble is safer?