What are you willing to consider as evidence? The internet is littered with hundreds of articles, interviews, anecdotes of CEOs working long hours to build up

What are you willing to consider as evidence? The internet is littered with hundreds of articles, interviews, anecdotes of CEOs working long hours to build up the company, bring in new business, keep existing business, etc (and if you're feeling a bit grumpy today, yes, also to enrich themselves).