Private tutors would all be better off if Wyzant did not exist. Profit margins are thin and nobody wants somebody skimming 30 % (that is best case scenario: 20% from tutor and 10% from student. Early on the rate is 50%).
But Wyzant hires a massive team of graphic designers, programmers and data experts to dominate the internet. So anybody who wants to be a local tutor absolutely must use them to survive.
Wyzant provides a service to the consumer, but expects the business to pay most of the cost.