"The point is the NT are in a position of responsibility and whilst one can understand they have to take all opportunities within reason to obtain the money needed to break even overall (across all properties) let them make money somewhere else and not in the centre of the largest stone circle in the world."

Well summarised.

They oughta be in the lead when it comes to doing the right thing.
And if they want to know what's wrong with the idea let them imagine getting an application for whatever they're planning from anyone else - they'd point blank refuse.