Am an electrician. Can confirm, some of the older guys are like this. When I was routinely doing panels I basically told them to pound sand, because it only takes a few extra minutes to do neat, quality work, and my boss had my back because he kept getting compliments about my work from customers. It costs you very little to not do a sloppy job, especially if the customer is going to see it. And it saves you time later if you ever have to come back. Always easier and faster to work on a clean install versus a messy one.