You may take that implication, but I didn't suggest it. Your (or mine) failure to interpret the parable correctly doesn't make it a lie. The parable ran deep and wasn't a statement about the fate of sinners versus the righteous as you seem to suggest. Christ never called the rich man a sinner or the poor man righteous. In fact, if you believe that then you would have to believe that the poor man got to heaven without faith in Christ.
There are in fact many theories about what it represents. Your interpretation is at odds with scripture after scripture telling us that sinners die and that eternal life is only possible through Christ.
If that were in question, they would not have been separated by a gulf.