He STILL has to BUY the goods, and ship them, and pay all the taxes and fees. What is left after all expenses are taken out, INCLUDING the cost of the goods, is the net. Ships don't hang out like taxis, waiting for a load - they are ordered up, and THAT also costs money.
Somebody has to give the seller their asking price. Someone has to pay the shipping company, their crew, the longshoremen and everyone else in the supply chain BEFORE a penny is received from the buyer. Then, everyone gets paid. All an LC does is provide a guarantee that they will be paid.
Soon, there will be completed orders, and we will all see what the actual cost and net profit is. It will be made public. Those dreaming of hundreds of millions in profit are going to be sorely disappointed. It isn't like chicken paws and sugar are a brand new product - there is competition. Competition is what levels the market.