I think I will stick to doing the work the correct way or not at all. Don't need any more drama.
I bet if you asked any excavating contractors that have been around for a while the answer would be the same.
I don't mind at all letting the "other guy" have the work that is questionable because the customer wants to save money. I don't see the upside for me to do it any other way. I don't need the work that bad.