To be honest with you, I think sorry is one of the wrongest words ever brought to our understanding. I mean, a person can do all the wrong things, even as far as murder, but expects to be pardon or forgiven just by saying sorry. Just think about it. Why should a five letter word yield so much power? Am not an advocate for unforgivenes, but I simply feel that there's a certain degree to which the word sorry should be employed when conversing, asking or seeking pardon for a wrongful act.
If an individual is known for always using the word sorry, then such individual's word's shouldn't mean anything as saying sorry probably wasn't from the hearth. People like that we often repeat or exhibit more wrongful acts knowing they will easily be pardon when the speak the word sorry. On the other hand, there are times when people actually mean it when they say sorry. You can actually see the feeling of being sorry before they even speak the word. These are times when I get to have a second thought and forgive the invention of sorry.
Hence, the word sorry from my own experience with individual behavior, does more harm than good. Otherwise, it wouldn't have been a very commonly used word.