As a prominent counter-example, Bill Gates was famous for showing up at tech conferences with a grungy t-shirt, unkempt hair, etc. (And like Zuckerberg, he didn

As a prominent counter-example, Bill Gates was famous for showing up at tech conferences with a grungy t-shirt, unkempt hair, etc. (And like Zuckerberg, he didn't need to impress any bankers.)