You make a good point, but the key here is that there are a lot less people with that kind of money. The lower volume of patients is why that's possible. There are a lot more people in the middle class. So sessions have to be limited to ensure everyone has fair, equal and timely access to a doctor.

And of course, GPs typically diagnose more common problems, and refer patients to specialists when needed. Specialists have a lower volume of patients, and are able to take more time with each person individually.