I think most people have views that are controversial. Only when one is famous do others hear about those controversial views. Furthermore, just about every famous project has its distractors, leading to controversy.

Take Stephen Hawking as an example. He doesn't believe there was a god who created the universe. That's a controversial view to many. But when an non-famous atheist says exactly the same thing, few take notice, so you don't hear about those people.

Take Alan Kay as another example. He's one of the key people behind OLPC, which given its criticism could be considered controversial. But name any big project which has neither criticism nor controversy.

Ole Kirk Christiansen founded Lego. He was visionary in that he saw a future in plastic bricks as toys for children. What were his controversial views? I have no clue. But he probably had some. Perhaps his motto "Only the Best is Good Enough" is controversial to someone who believes that that second best may be good enough for some cases.