tell you what....when I fly business I sure as heck do not want people from economy class in the business class toilet...have you effing seen what those economy toilets look like after about half an hour flying time??? Particularly flying into and out of the ME and Asia . No thank you.

It's simple, you get what you pay for.

And since you do not seem to be particularly adverse to follow the call of nature where you happen to be standing...stay the heck away from anything related to business class and anything where cleanliness and decorum is in order.