How many times have we said we are sorry to people for our behavior while using and gone on to to the exact same thing over and over again. This is especially true when we are talking about the people that are closest to us. The ninth step was not designed to go to people and say we are sorry again. These people have heard the "I'm sorrys" for years and we never changed anything.
That is what this step about, change. The step is also the ninth step because without the eight previous steps we can not change. When we get to step nine we should be ready to humble ourselves to people and discuss the past. We should be ready to make the changes neccessary to repair relationships and take responsibility for our actions. Many times we hear that the people we have hurt ask them to not drink anymore and that is enough for them. We know for ourselves that just not using anymore will not do. We can be helpful and caring to those people now.
The word amend means to change something by addition or subtraction. Think about the definition of that word and it tells us that just not drinking is not all there is to it.