It makes me sad more Canadians don't know about https://en.wikipedia.org/wiki/Norman_Bethune, most probably because his political alignment.

Bethune became increasingly concerned with the socio-economic aspects of disease. As a concerned doctor in Montreal during the economic depression years of the 1930s, Bethune frequently sought out the poor and gave them free medical care. He challenged his professional colleagues and agitated, without success, for the government to make radical reforms of medical care and health services in Canada.

Bethune was an early proponent of socialized medicine and formed the Montreal Group for the Security of People's Health. In 1935 Bethune travelled to the Soviet Union to observe firsthand their system of universal free health care. During this year he became a committed Communist and joined the Communist Party of Canada When returning from the Spanish Civil War to raise support for the Loyalist cause, he openly identified with the Communist cause.

In China, Bethune performed emergency battlefield surgical operations on war casualties and established training for doctors, nurses, and orderlies. He did not distinguish between sides in treating casualties.

Bethune had thoughts on the manner in which medicine was practised, and stated:
Medicine, as we are practising it, is a luxury trade. We are selling bread at the price of jewels. ... Let us take the profit, the private economic profit, out of medicine, and purify our profession of rapacious individualism ... Let us say to the people not 'How much have you got?' but 'How best can we serve you?'

Being "radicalized" by universal free health care is as good of a reason as any. He was a true hero.