Now, that being said, I also highly doubt any of these understood their need for a savior because their sin was an offense to a Holy God and the wrath of that Holy God rested upon them (John 3:36). But had they understood that...repented...and placed their faith in the finish work of Christ...then the Bible promises salvation. Too many have worldy sorry about their sin...and not Godly sorrow. They think, somehow, their righteousness makes them BETTER than those mentioned above...when in fact, all of our righteousness...the best part about us...is but filthy rags (IS 64:6). We are ALL unclean and need to be washed...and HIDDEN in the Blood of Christ.
Rewards? Not so much...but only as one escaping through the fire (1 Cor 3:15)
Stalin died shaking his fist at an invisible presence waiting for him
Maybe now Hugo is with him