If AI can generate software so easily and which performs the expected functions, why do we even need to know that it did so? Isn't the future really just asking

If AI can generate software so easily and which performs the expected functions, why do we even need to know that it did so? Isn't the future really just asking an AI for a result and getting that result? The AI would be writing all sorts of bespoke code to do the thing we ask, and then discard it immediately after. That is what seems more likely, and not 'so much software we have to figure out rights to'.