The point of the death of Christ is that Christ took on the sins of the world, so that what we put out did not come back to us, and that our sinful nature does not reap the obvious death. That's the point. It should keep us humbled... It's not our own good works that get us through the gates of Heaven.
But with Christ, we have access in a one-to-one relationship, for, as in the Old Testament, it was more one of worship and awe, a vertical relationship. The New Testament, on the other hand, we look across at a Jesus who looks familiar, horizontal. The combination is what makes the Cross.