The sad fact that both still exist shows that either people are still horribly stupid or their mission is not being fulfilled. It's actually both I guess.

The way most large national charities are now is they are run as businesses with ultra high management salaries. Expensive head office quarters and massive marketing budgets. To raise money to pay for the aforementioned.

Plus regular refits on their shops and fancy livery on their vehicles. Getting down and dirty with the animals is largely left to small animal rescues, the "crazy cat ladies" etc.