The codiscoverers with Frederick Banting were Charles Best , James Collip and John Macleod wikipedia; can't find a profile)?
The team sold the patent to the University of Toronto for just one dollar, for the benefit of the world .
Before insulin Type 1 diabetes was a death sentence. Death could be delayed a little by a diet that was little more than a starvation diet. The effects of high glucose levels, but no glucose reaching the cells, meant those with the condition became skeletal before death. One of my favourite 'stories' is of Dr Robin Lawrence. A young British doctor working at Kings College Hospital who developed Type 1. He adopted a strict diet but soon had to retire from the hospital, moving to Italy for warmer weather. His condition deteriorated and his early death was inevitable. In May 1923, he received a telegram from a friend at King's College.
'I've got insulin-it works- come back quick'.
He spent 2 months in hospital and was brought back to health. He wasn't cured (there is still no cure) but was able, with regular insulin injections to spend a full lifetime working as a doctor. He became a world renowned diabetes specialist, researching the condition and running a busy clinic and ward at King's College hospital. He founded Diabetes UK (a charity). He died in 1968, aged 76
https://en.m.wikipedia.org/wiki/Robert_Daniel_Lawrence
The discovery of insulin, meant that Dr Lawrence, and people like me, living worldwide had a chance to live longer and fuller lives.
edit typo