I can see you have significantly greater exposure to Xtianity than to Judaism. In Xtianity, the threat of eternal damnation is held over the head of all believers. Hell awaits unrepentant sinners.<quoted text>
...Besides, I would far rather trust a person who did good out of their empathetic nature over someone who was doing a good deed simply because they're afraid of the "punishment" they might receive in the afterlife if they didn't.
In Judaism, there is a moral imperative to make the world a better place -- tikkun olam (quite literally "heal the world"). This isn't a biblical injunction that comes with a threat of punishment but as a benefit to social harmony. The torah, indeed all Jewish scripture, is extremely vague on the subject of the afterlife, it's punishments or rewards.