Which jobs in healthcare, business, and technology are immune to ageism?

As a senior, I think having an important position in a company or industry would make ageism go away. I know a person in real estate who almost decides how much a property should go up or down. He’s the Elon Musk of properties in the city, and he’s about 60. I guess what I’m trying to say is that no matter where or what industry you’re working, no matter how old you are, most people will respect positions and money, not people.