Correct, it is to instil work ethics and a way to earn money. Also a way to feel good about themselves.Sounds interesting. I think it is not really teaching them to go on to be selling soap as such, but rather working together IN the clinics on the project as a way to focus and learn general skills, get money to get things sorted out and to go on to work elsewhere in what ever it is that they want to - the soaping itself is a sort of treatment and a means of getting them some cash for their needs, rather than each individual going on to start a soaping company, if I read that right?
Congratulations on 6 years of freedom. You are not alone. At 61 I turned 16 and continue to live sober and free.
Do not be too surprised if you run in to some resistance about helping the folks in treatment to sell. I would think that a way to get your foot in the door would be to offer a craft for them to be learning - like as in arts and crafts - to get started. Go from there and see what happens.
Do not be afraid to share your story with them either. You just might save someone's life.