Homeowners, buyers and sellers have always been skeptical of real estate professionals. I'm certain this has something to do with the fact that real estate agents are perceived as making huge amounts of money, for what consumers see as little work. (Hah!) It also arises out of the understandable skepticism of any professional adviser whose pay is 100 percent commission-based, meaning that if you don't buy, they don't get paid.
This sets up a situation in which incentives seem to be structured around what's in the agent's best interests, even to the exclusion of the clients.