Great point.
I suspect it segues into the studies of being refined like fine gold, with all the dross being removed.
Our eternal self is continually sanctified by God the Holy Spirit while we are alive, and at the bema seat we have eternal rewards/crowns given us as resources for all eternity future.
Somebody who sins and doesn’t confess after salvation isn’t getting away with anything, rather they are losing eternal rewards.
I suspect those who are preoccupied in attacking “Easy-Belief-ism” perceive an injustice occuring where a sinner gets the same thing as a saint. They misunderstand which rewards will be missed by those remaining in sin.
The unbeliever loses an opportunity for a crown of life, because they never appear at the bema seat judgment. The Great White Throne Judgment consults the Books of Names and Works for justification.
Will there be regret, remorse, or envy for some in heaven?