Leaving out salvation is preaching a horribly incomplete Christianity.
Why is that?
Salvation is not something you can go after, predict or do anything about, that is, according to most teachings.
Christianity is in reality about Loving God, Your fellow man and looking after God's creation in the way that Jesus taught.
It is not about looking for or earning rewards. even gifts as great as Salvation.
Salvation is not held over our heads as a sort of punishment gift, that will be withheld if we do not believe or misbehave.
All men are open to Salvation, Christian or not in, the next life.
There is absolutely no way to buy your self a free ticket...
We behave the way we do in this life because we love God, not because of a potential reward.