Honestly, most of those pieces are really just cargo culting more than anything else. They don't know exactly why a CEO or leader did well, so they look at their mannerisms and everyday habits and assume those were all things that made them more successful rather than ones they were good enough to overcome/that were completely irrelevant.

Well that and the real lessons (aka, luck has a role) isn't quite as soundbite friendly when written in article format.