Rubbish bins in parks?

Late last year my partner and I went for a 5 week cycle tour in Northern Laos, SE Asia. One of the places we visited during our time was the “Plain of Jars”. There are several areas where these mysterious stone jars are clustered. The exact use is not known, but it is surmised that they were used to house human remains.

You pay a small fee to enter the area and there were 40 – 60 tourists wandering around the main site the day we were there. Scattered around the grounds were several cane rubbish baskets that were overflowing with plastic bottles, wrappers, bags and general waste. It was clear that these were not maintained, yet they were still out there and people continued to use them regardless.
The leave no trace principle around ‘dispose of waste properly’ could certainly apply here. Generally this means “pack it in, pack it out”. As it was, we collected some plastic bags and proceeded to pick up loose rubbish as we walked around. By the time we got back to the park exit we had filled five bags.
Should places like this even have rubbish bins? There has been arguments for removing them from places that traditionally had them in New Zealand e.g. look out points and rest areas. Seems that the majority of back country users can apply the dispose of waste properly (“pack it in, pack it out”) principle. Hopefully we could see that applying in areas with easy access. In this case having rubbish bins seems to have exacerbated the problem of littering rather than helped.
Paul Chaplow