Not just mercenary attitudes...
Doctors offices have a high degree of passing along other infectious problems due to poor hygiene.
Hospitals also have poor hygiene problems which cause a high rate of infections that we did not have when we entered.
All in all, it seems to be a crap shoot if you go the the hospital.
Seems to me, the best idea is to stay away from Doctors and Hospitals unless absolutely necessary.
Avoiding blood pressure checks is very dangerous.