Those workers are paid ~minimum wage, and the amortized cost of the vehicle and its equipment is not $500/ride.
The reason they charge $500, $800, or $12,000 is because ambulance firms have monopoly licenses, because you're not going to haggle over the price when one arrives, and because they can charge you whatever the hell they want, and when the dust settles, some people might even pay it.
Those workers are paid ~minimum wage, and the amortized cost of the vehicle and its equipment is not $500/ride.
The reason they charge $500, $800, or $12,000 is because ambulance firms have monopoly licenses, because you're not going to haggle over the price when one arrives, and because they can charge you whatever the hell they want, and when the dust settles, some people might even pay it.