I'm going to say you are being a bit unfair there Fin, but I know where you are coming from. The RSPCA moved into the village, well small town now, where I live a few years ago and their national headquarters are now about 1/2 mile from my door.
They have made no attempt to build any kind of relationship with the local community despite being the biggest contributor to traffic in the area and the biggest employer within the immediate area.
From staff I've met they are like many big organisations these days, in that they out source their call centres, although they are UK based, these centres as with most others are poor at best and generally a poor first point of contact.
We recently got a dog from them and so having experienced their work first hand I think in general they do a good job, but they rely so heavily on volunteers I suspect their ranks are infiltrated by the types you refer to, but sadly what organisation can afford to turn away any volunteer these days.
Our home visit was carried out by one such middle class lady of the name flopsy I'll leave it to your imagination how that one went down!
I know that their inspectors are paid so badly it's a crime in it's self and the rubbish they have to face everyday is beyond a joke, so hat off to them for that.
But they do need to work on their image and relationship with the general public as the perception of them isn't helped by stuff like this squirrel story.