This is not even remotely true, especially when it comes to the general population. I'm not trying to slam you here, I was of same mindset too, since at least 2009 (I stopped using API in 2013 and assumed things were clamped down).
I don't want to be a nag on his, e.g. Mustnt assume everyone knows what you know! Rather, I think this is an advantageous mindset to have. Anything you know in your profession, especially when it comes to tech or data, you can assume plenty of people (including future customers) don't have a damn clue.