> Canadian doctors, in relative terms, get paid about as much as American doctors and get to enjoy similar levels of prosperity as them.
No they don't.
> Canadian doctors still make dramatically less than U.S. counterparts: study
> Despite recent fee hikes, Canadian doctors still lag dramatically far behind their American counterparts in income, according to a new study that also underscores the wide pay gap in both countries between front-line “primary-care” physicians and much-wealthier surgical specialists.
https://nationalpost.com/news/canada/canadian-doctors-still-...
> Anywhere in the world, with the exception of the US, this is the case. US the outlier. Whether it proves the be the outlier that reverts to mean or one that the mean reverts to remains to be seen.
The US has been the richest country in the world in terms of average individual consumption (not income, some small countries like Norway have higher incomes) since independence and before. It's been at the technological frontier since the 1940's at the latest, and very close to it its entire existence. There may be mean reversion in the long run but given the greater share of young people, the best higher education system in the world and a relatively open immigration system there's little reason to believe it'll change anytime soon.