Particularly when used tyres are big business, and the materials are sought after for kids playground surfaces, ultra quiet road toppings etc. The companies that make these products take them away for free. Councils that charge for taking them at the tip are profiteering...or not, once they spent time and resources cleaning up roadside mess. The idea that its costs these refuse companies money to dispose of them is a lie.
The companies that run tips, sorry, recylinng centres make an absolute fortune selling on the materials they collect. I know this as a friends son runs one. The cost of the final disposal of unrecyclable waste is a relatively tiny compared to the profits they make, and councils shouldn't let them charge for such things. They're making a huge income off the materials they collect, so to take a little rough with the enormous smooth would do them no harm at all.