If you wish to use that kind of logic, then the saving ark was also only a "figure". ("like figure")
However, knowing the ark was real, we can be assured that our salvation by the good conscience towards God we have after our baptism in the name of Jesus Christ for the remission of past sins is also real.
I've never suggested the salvation isn't real, only that some things we have been promised have not yet occurred, but we acknowledge them as ours already. The resurrection is one of those things. Our salvation, while assured to us, is not complete until the resurrection occurs.
Acts 17:18 (KJV)
Then certain philosophers of the Epicureans, and of the Stoicks, encountered him. And some said, What will this babbler say? other some, He seemeth to be a setter forth of strange gods: because he preached unto them Jesus, and the resurrection.
Acts 24:15 (KJV) And have hope
toward God, which they themselves also allow, that there shall be a resurrection of the dead, both of the just and unjust.
Romans 6:5 (KJV)
For if we have been planted together in the likeness of his death, we shall be
also [in the likeness] of [his] resurrection:
Philippians 3:11 (KJV)
If by any means I might attain
unto the resurrection of the dead.
1 Peter 1:3 (KJV)
Blessed [be] the God and Father of our Lord Jesus Christ, which according to his abundant mercy hath begotten us again unto a lively hope
by the resurrection of Jesus Christ from the dead,
All the bolded words are speaking of something in the future--the resurrection of the dead. That's our hope, what Christ came to give us.