It's weird that air carriers can sell lost luggage, but if you find someones stuff and sell it, it's typically illegal. People report their missing luggage, de

It's weird that air carriers can sell lost luggage, but if you find someones stuff and sell it, it's typically illegal. People report their missing luggage, definitionally air carriers know the passengers. Without explicit consent to sell the luggage why is this allowed? If an airline loses my luggage, and "compensates" me, they still have no right to sell it. It could include all kinds of personal information, or things of personal value, etc.