I hear being an ex-founder is useful in this regard. Apparently, working at McKinsey or Bain or one of the other large "prestigious" consulting firms is also a good move. Going to Harvard, Yale, Stanford or similar univerisities is almost a hard requirement. Almost[1].

Or, in the rarest of events, found a business that is successful and somehow manages to get big enough that you get status by proxy.

In any case, sans the last (and rarest) way, you'll have to walk the walk and talk the talk. It can get unsavory.

[0]: Oligarchy and Plutocracy fit too. Take your pick. To grossly oversimplify: If you're part of the Aristrocratic families (Rockefellers, Dursts etc) thats one way. Another is via being apart of the oligarchy (corporate power is alive and well. from oil companies to big tech) which is often intertwined with aristrocratic insitutions (Harvard, Yale etc). Finally, of course, you have the mesh of percentage at the top that fall into Plutocracy, which are wealthy and powerful themselves but are in service of even wealthier and more powerful oligarchs and artistrocrats in many cases.

[1]: Somehow around the edges you can find your way into it without this, but its challenging to say the least. Usually (but not entirely) its due to the rarest case, being a successful entreprenuer and surviving long enough to be recongized by proxy. Though, sometimes servant becomes the master. See outside executive recruiting