In my experience it is also the other things in there which helps with the pain relief. Doctors in my country talk about the entourage effect and mixing strains as they reckon it's not just the THC which is helping.
I can imagine people in the future looking at us like idiots as they use cannabinoids in the same way we use paracetamol.
From personal experience suffering from chronic pain cannabis is absolutely transformative. The difference between a life spiralling to nothing just about surviving on opioids compared to effective pain relief from cannabis and being able to work and be productive again.
One of the tragedies of the 20th and hopefully not the 21st century. So many people in so much unnecessary pain.
Looking at history I could quite easily come to the conclusion... ...due to racism.