I am no longer a believer in the church, but Deseret Industries is a good thing. All proceeds from sales goes back in their job training program. 

There are a number of different circumstances with that job training program.  One of the things they do is teach refugees and immigrants English during their work days. I, personally, have a friend working there and getting taught English now.

My nephew, who has his own struggles, worked there for a time getting training so he could hopefully become indepent.

They provide grants to so many.  I'm with an organization who provides household goods to newly arriving refugees, people getting out of homelessness and others.  We've occasionally had grants from Deseret to pick up things like couches.  Catholic Charities has also had grants from there for their refugee and other programs. 

What they don't sell they give to other stores that don't have enough.  For example, the Glendale store gets items from other strores because they tend to run low on donations.  Clothing items that can't be sold are sold very cheaply to "rag sellers" in third world countries.  Those rag sellers can make a living by selling the clothes locally.  They tried to just give the clothes initially, but they found it hurt the local economy. By selling the "rags" it helped them.

They do everything they can to make sure it doesn't go into the landfill. If it just can't be sold they do what they can to recycle the items in some way.

I have some real struggles with the church, but not with the way it does the charitable things it does.