When they ask to see your ID, they probably also define exactly which parts of the it they want to see. If you choose to comply, you could still cover everything else from the ID card.

Ideally though, you would tell them where they can shove these requests. In reality, according LI is getting a bit hard.

Unethical actions and profits tend to go hand in hand. Have been for centuries already.

Just think about the economics of kidnapping people in Africa and exporting them to slave camps across the ocean instead of paying white employees to do the work. How about using violence, exploitation and systemic injustice to acquire very cheap spices in Asia and transport them to Europe, and sell them for huge profits.