I wonder sometimes if certain markets -- like taxi services, used car dealerships, domain registrars, etc. -- have inherent and non-obvious structural character

I wonder sometimes if certain markets -- like taxi services, used car dealerships, domain registrars, etc. -- have inherent and non-obvious structural characteristics that bias the market toward "slimy" behavior. To some extent Uber and Lyft are being driven by customer dissatisfaction with the expensive price-fixed "cab mafia," but in reading about these companies it seems like the sliminess has just shifted to other domains.