I didn't quite understand the sentence below. This is from a piece on import being harmful for the economy of a country because it decreases the number of job opportunities. Isn't stocking shelves with goods from far away and shipping from abroad are basically the same thing? It's both import, but I also understand from the sentence that he compensates for the first one with the second. Am I missing something?
Sam Walton chose instead to stock his shelves with goods from far away, in line with an ethos he’d also shipped in from abroad – an ethos made in Britain by the eighteenthcentury economists Adam Smith and David Ricardo.