Most known examples of “shamelessness” today, as defined in the article, are probably Donald Trump and Elon Musk. The strategy worked incredibly for both.
For Trump maybe, he got 4 years as the POTUS by saying crazy things in a crazy manner and with a crazy delivery.
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.)