In the immediate aftermath of ceasing usage/consumption, yes. Work DOES work in that aspect.
I think regularity and disciplined labor can be hugely beneficial, but if they're working for profit, then of course they should be paid their dues. Now, having said that, I can see a case for placing those funds on hold, so that they don't spend unwisely during cessation, or make bad impulse buys. I've known guys who spent their paychecks on dope right after being clean for 18+ mo in a residential. It can go any direction, that's hard to predict.
As for relearning behaviors, it's sort of reflective. If I get fired and I'm sitting at the bus stop with no supervision and nowhere to be, and I feel ashamed of myself or inadequate, I mean, that's a recipe for relapse. I grew my skill in reflecting on the ability to choose DURING those events. A few days ago, my best friend from rehab was diagnosed with pancreatic cancer. He's terminal, I went and saw him over the weekend and he looks like walking death. I felt all those crazy feelings and it's like they were all under one big [[you don't have to drink to get through this]] annotation. I can't explain how to just do it, but THATS the skill they're relearning. That's what drugs and alcohol takes away from you until you can get it back.
Normal life is honestly the easiest, but can hurt the most. In most of the people I've met and known, it revolves around relationships with their family and loved ones. That's always an individual thing. All I can say is not to rush it, and just make yourself unimaginably patient no matter what. Being busy isn't that important. It might even be less important, because you just need to give your family time to see you grow back into your previous capabilities with your new knowledge and understanding.