I'll disagree with Viktor Frankl, not because I've read the book - but it is worth knowing the man was a questionable person and his ideas have some questions over them too: https://en.wikipedia.org/wiki/Viktor_Frankl#Controversy
They succeeded because they [somehow, for one reason or another] got away with their bad traits (or what we perceive as bad trait nowadays), and they became famous because of their good traits.
I’m not sure what “questionable person” means. The Wikipedia article describes criticisms and I’m glad they are documented, but seem to come down to criticism of his philosophy by some peers.