trains and busses that actually work and get people where they need to go with minimal hassle and a reasonable cost
Trains predate cars and busses have always been with us since the car. People have voted – with their cars.
The Interstate Highway System started in the 1950s. Population has more than doubled since then. Of course, we have more traffic, we have more people!
A lot of the comments so far are trying to stay with the negative connotation to exploitation. You exploit your comfortable shoes to walk further each day. You exploit the microwave oven’s ability to more quickly warm your coffee than the stove.
This is the same with discrimination. You choose the raspberry danish over the cheese danish. This is you practicing discrimination, and it’s fine.
Any evil in it comes from abuse or impact to yourself with respect to others, that second definition of exploitation in the OP.