I agree with @Bill1939. He was compulsive and luckily, a master at ad lib. He would have done his thing whether he’d been a gardener or a garbage man. He couldn’t help himself. But off the stage, most people wouldn’t get it and they would have marked him as a nutcase.
Guys like this don’t do well among us unless they are noticed and given the chance to take it to the masses. At the time Williams started out, we were a much different society of young people searching for alternatives from the world our parents had handed us, a world of conformity, blind loyalties, a world of unequal dichotomies based on race and religion. There was a war on that many of us felt was unjustifiable, immoral, unnecessary and blatantly imperialistic, wrong. Any innovation in the arts was welcome, any alternative lifestyle was valid. Then along came artists in music like the Beatles and the Stones, like Warhol, and cartoonists Crumb, and comics like Bruce and Williams, so different from one another, but both spoke to this rebellion of ideals and lifestyle, and they were taken in as icons.
He would have never made it if he was born before his time. Even Jonathan Winters, a member of the offending WWII generation, and William’s number one mentor, barely made it until he stopped criticizing the ambient society and hypocrisy of his generation and settled on being an inane court jester safe for the movies. But William’s time was different and he took the ball and ran with it. Winters, before he passed away, often commented on how lucky Williams was to be in his prime during the turmoil and change of the ‘60s and ‘70s.
Williams had a good life, considering the shit he would have taken if he hadn’t the protection of wealth and celebrity. Guys like this are bullied all through school because their genius is misunderstood, their energy so overwhelming, or simply because they are so different. By the time they reach full adulthood, their gifts are often beaten down into a kind of catatonic silence so they may live a life unharassed by the envious, the moronic multitudes around them. They learn the hard lesson that being different will not be tolerated here. This ain’t no fucking stage and you ain’t in no movie.
I personally think he would have been a suicide risk much earlier in life if he’d been forced to live the road much traveled. Or, in this case, travailed.
RIP, you bloody fucking genius.