Love him or hate him (there seems to be no in between), Donald Trump’s rise to the Presidency can be attributed in large part to his use of social media. In sending out tweets, the President-Elect was able to control his message, going around traditional media, avoiding biases and inaccuracies to communicate directly with the people. In this way, he was able to market himself and his personal brand. When questioned about his twitter use on 60 Minutes, Trump said, “I find it tremendous. It’s a modern form of communication. There should be nothing you should be ashamed of. It’s — it’s where it’s at.”

They don’t agree on much, but billionaire businessman, Dallas Maverick’s Owner and “Shark Tank” star, Mark Cuban also thinks it’s where it’s at. He too, is a prolific tweeter. During an interview with Business Insider, Cuban remarked that it’s the ease in which he can get his message out that’s so appealing about Twitter.

So you have two billionaires who have cultivated mega personal brands squaring off on social media. What does that mean to you? As a modern day executive looking to advance in your career, it’s a lesson in self-promotion and marketing. To establish yourself as a subject matter expert, savvy in today’s communication and marketing techniques, you need to be putting yourself out there, controlling your message and broadcasting your brand.