One of my professors worked at Apple pre-Jobs firing. He said the same thing-Jobs was brilliant, but quite a megalomaniac. He was extremely intolerant of differing opinions and burned through employees like firewood.
Visionary and benevolent are not synonymous; more appropriate terms would be fanatic, idealistic, dictatorial, tyrannical, despotic, domineering, arrogant, imperious, bossy, even extremist. Regardless, he made it big following his dreams. Politics aside, he was quite a businessman, and I believe more ethical than old Bill.