While those things are rightfully illegal, they are nevertheless a lot more prevalent than most people are comfortable recognizing. Any service which takes pains to eliminate the possibility of discrimination, not merely forbid it, is a welcome addition to the industry as far as I am concerned.
Man...you should go see what happens at Union Station on a weeknight right after 12AM.
It's essentially a free-fire zone on travelers. Taxis violate EVERY SINGLE RULE on fares that are supposed to protect the public.
If the DC Taxi Commission wanted to have a shred of credibility in this issue, they'd tackle that problem FIRST and leave UBER to the people that can afford the fare.