I was amritdhari(going for pesh in April with my wife) and I'm involved in my family's food & beverage business. I handle meat on a daily basis and I suppose it's fine, as long as you don't consume it. It doesn't hurt or affect my conscience in any way so it's alright to me. Amrit should also not be a hindrance to your father's job, as i suppose he's leading a decent and honest living :-)