Most known examples of “shamelessness” today, as defined in the article, are probably Donald Trump and Elon Musk. The strategy worked incredibly for both.
Musk net worth however peaked before he started saying crazy things. What got him there was selling pie-in-the-sky ideas which never come to fruition, BS-ing investors and the ever powerful Us v. Them (oil companies, Wall St. shortsellers, hedge funds etc.)