The part that bothers me isn't so much that someone came up with the idea that they could sell a toilet camera marketed as a health app.

It's that it made it far enough to actually be produced and sold. Which means someone tried to go the route of making it a medical device, was told "No" for some reason or another, but said "you know what, there's still money to be made here" and they found people that had no problem making it. If they did have a problem making it, I suspect they no longer work for the teams making it. But because it's here, they found enough people to go "ok whatever."

And that's how we end up with the modern dystopia.