Sorry, it was late at night, and I thought you were referring to my comment above yours. If you are referring to McAfee, he certainly did achieve a lot of things, but he was also an "alleged" rapist, and murderer.
And a shit-eater too!
What exactly did he accomplish? He wrote and disseminated malware so that he could sell software to eradicate it.
Thirty years later he did the same thing when attempting an extortion scheme targeting Google.