I remember when Moss went upside down and was flung from his car, onto his head. He was never the same after that, but without a roll bar he would probably not be here now if he'd stayed in there.
I met Sir Jackie at Long Beach in the late 70's and he is still my hero because of both his driving and his obsession with safety improvements. Those men had balls the size of grapefruits, but they didn't really know how brave they were until conditions started improving and they realized how bad they had been. Too many good men lost so that those who followed, including all of us, could race and live to tell about it.