These animals, especially the camels, thrive in inhospitable areas.
It’s an unfortunate reality that it’s not financially viable to collect the bodies.

Every now and then someone get’s the idea of rounding up all the feral cattle in the NT.
https://news.csu.edu.au/feature/are-feral-cattle-the-brumbies-of-the-northern-territory
That’s not going to happen either.