Are good people who never see their need for salvation just as doomed as criminals?
Yes. Good people who never see their need of salvation are headed for eternal doom just as much as a Mafia man, a murderer, or someone on Death Row. Their goodness does not remove the issue: they do not believe God has said they are sinners, and recognizing that is the first step.
Les teaches that good people can be so good they never see their need of salvation, yet they are headed for an eternal doom just as much as the man in the Mafia, the murderer, or the inhabitant of Death Row or Skid Row. The root is unbelief: they do not believe God has said they are sinners, and seeing that is the first step. Les then reviews the circles from Genesis: Adam was created body, soul, and spirit in fellowship with God, with mind, will, and emotion in agreement with the Creator. When Adam sinned, that whole personality became a sin nature bent to sinning, and communication with God became dormant—not annihilated but dead, like a car battery left with lights on overnight.