That's a really dangerous takeaway. I've wondered, too, if being an asshole is a business advantage. Here's what I've learned:
1. This approach only amplifies whatever ideas you feed it. With the right vision behind it, you may end up becoming a force to be reckoned with. And people will endure your tantrums because you deliver them success.
2. But if your contributions aren't good—really, really good—this will only amplify your failure. And no one will endure you.
3. Most importantly, being an asshole may help great ideas get powered through, but it's not the only way. The people I most admire have found success while still being amazing human beings to work beside.