It seems most of the sound is just broken when exported, how strange, the actual gameplay video has the audio (recorded on the non-exported version in the engine) if you were wondering how it was meant to sound, but how strange a problem, I'll have to take more care of the audio properly functioning next time.
On review of the problem, it seems I was loading the background music and the button-click sound incorrectly, leaving only the cash earn sound functioning properly, whoops.