I think you are jumping to conclusions.   For example, according to
Walsh, in Sweden, they are in favor of testing for breast cancer and for
early treatment.   Until recently, they have had the opposite point of
view about prostate cancer.  He mentions this because their breast
cancer death rates have been going down while their prostate cancer
rates have not.  Note also that Swedes do better than we do in almost
all aspects of health, including life expectancy.

In fact, the US is the only advanced industrial country without
universal medical care.   In some countries---Great Britain comes to
mind---the doctors are employed by the government, but in others---e.g.,
Canada---the doctors operate as they do in this country, but the
provinces are the insurers.  It is hard to generalize on the basis of
one example---the US---without universal health care compared to
everyone else who does have it.