The reality is that many people successful or not don't like being told what to do regardless of the consequence. I don't think there is any new Kool-Aid involved wrt the mask. Sure, the science is out; the science is out on many things which we also ignore on a daily basis without any consideration. Speeding, smoking, drinking alcohol, using drugs, unprotected sex, going to the Moon/Mars and not wearing your seat belt... Some people are more inclined to take risks than others.
I'm not going to condemn the man based on that one thing - it was his choice. Maybe his death will serve as the motivation for others who are on the fence about wearing a mask to put one on; especially those who are in the "more susceptible" categories.
It's not simply a matter of taking a risk. It's about endangering others.
Though I agree with you at the base of it, I suppose my general feelings are more in line with the idea that each person is responsible for their own choices in regards to this... everything really.
This man paid the price for his own choices. And I cannot care less about what his opinion is on masks insofar as it's effect on whether or not I wear one. That is my choice and I own the consequences. On the other hand there is some theories that masks protect other more than the wearer. In this regard I believe locally based laws and regs are appropriate. And if you are breaking the law by not wearing one I think that too should be something one is ready to face the consequences of.