Say that you are an auto mechanic and on all the cars you worked on, you tightened the fan belts too tight so that it broke the components connected to the belts (the generator and the water pump). You did it wrong so that every car you did this to ended up breaking down. Instead of helping people, you were messing up their cars.
That is like living your life wrong in sin. Instead of leading people to live right, our example is teaching others the hurt and pain of sin. We should want to do what is right; that's what makes sense. Shaul said in Romans 6:17-18 NKJV, "But God be thanked that though you were slaves of sin, yet you obeyed from the heart that form of doctrine to which you were delivered. And having been set free from sin, you became slaves of righteousness." We are a people who are rescued so that we can do what is right.
We used to be slaves to doing things the wrong way, but now we have formed good patterns in life where we do what is right. Righteousness means to live right. We change our patterns of life where we did wrong and now live right. In whatever we do, we become slaves to those behaviors; why not become a slave of doing what is right and bring goodness and blessing to this world?