Did you just say driving a bus is dangerous? You're behind a vehicle with 10x the mass of anything you might collide with. How many bus drivers have died on the job?
Dangerous doesn't just mean for the bus driver. It's dangerous for other road users, which means a greater responsibility for the driver, in the same way it's dangerous to drive a HGV. Also, busses can and do come off the road and roll down hills, or fall off sheer edges like cliffs. Busses are harder to control than cars so this danger is greater than driving a car. Oh and some bus drivers get attacked by members of the public, for example the guy who got stabbed for refusing to let someone without a mask on, I think that was France.

If we're going to pay people more for doing dangerous work, how about we start with firemen.
No argument here.