The world is full of assholes and yet there is only one Steve Jobs. If you are thinking of emulating him, I say stick to his better sides: understanding the industry, positioning, marketing, branding, public speaking and of course product design.
That said, in my experience, you'll get WAY more out of people if you treat everyone with respect if and until they do something to cause you to lose that respect. And even then you're better off having a polite but firm attitude.