"If" is the defining word in your statement. Mormons don't necessarily beleive in the salvational work of Christ, but believe (according to their third article of faith) that: We believe that through the Atonement of Christ, all mankind may be saved, by obedience to the laws and ordinances of the Gospel.
Mormons might "seem" to be good people...so what? Many sinners appear to be good. There is none good, but one. Anyone who believes otherwise is obviously in disagreement with the Bible or believes it is not translated correctly. What do you believe?
I believe Jesus Christ is the way the truth and the life and no one comes to the Father but by him period...John 14:6
Jesus gave us a clear commandment as Christians to love God with our entire minds
What is the first and greatest commandment?
[The first and greatest commandment is You shall love the Lord your God with all your heart and with all your soul and with all your mind.]
2. What is the second commandment?
[The second commandment is Love your neighbor as yourself.]