We are not to judge sinners against our own righteous. For by that which ye judge, ye shall also be judged. But I think we misinterpret what Jesus said, and that it would be perfectly normal for us to judge ourselves and other sinners against the righteous of Jesus Christ. That is also the righteous that we shall be judged against. I am not doing very well in that category at present, but I no where I need to get, and am working on it.