This is completely absurd and you should really calm down. Aside from 5-10 Fortune 500 CEOs, how many others can you name? You do understand that Silicon Valley's top VCs are rarely heard from, correct? There are literally thousands of companies in Silcon Valley that have more revenue than Twitter. I bet you can't name more than 50. Top bankers rarely get press. Can you name any? Or better yet, how many billionaires can you name among the thousands? We're not all Steve Jobs, nor do we want to be. Your idea of what it takes to succeed is bordering on asinine.

And indeed Steve Jobs is pretty quiet, and often criticized for it.

He also never talks about himself but only about the results of his company, and even then only a couple of times a year. Given that he's the CEO of one of the most successful companies in history, it's hard to imagine him being any more quiet and still doing his job.