Very bad choice of BS to change the topic and force your views into the conversation.
In 1977, even Jonas Salk admitted that mass inoculations caused most polio cases since 1961.
The Salk vaccine proved highly dangerous. Information about it was suppressed, and declines in the disease were well underway when mass-immunizations were begun. In Europe, they occurred in countries that used, then rejected the vaccine proving it was never needed in the first place. Showing also that the same is true for other diseases, including Swine Flu with the WHO and CDC admitting that most cases are mild, unthreatening, and generally pass without treatment, let alone risking dangerous unneeded vaccines.
Consider Albert Sabin peering into his microscope. He was motivated, no doubt, by many altruistic urges. Still, to a large or small degree he undoubtedly was motivated by some emotions that others would consider unacceptable. He may have had enough pride to think "If I can whip this, people will shout my name and think I'm a swell fellow." He may have thought: "A solution will earn me enough money to research the things I want without having to suck up to the bureaucrats." Maybe he even considered: "I'll beat that goddamn Jonas Salk like a drum."
Whatever.
As a result of his thinking - good and bad - Polio has been eradicated, world-wide*, during my lifetime and yours.