Someone who very visibly, very loudly, and very consequentially, inserts himself or herself into global and national matters is a very public person, by choice. No one is peering into his house and taking pictures. Someone published legally available public data about an aircraft, exercising their right to freedom of speech.

And certainly not powerless. Being an oligarch (or celebrity) -- you know, you get to call heads of state and have a chat -- is not about "wealth" or "fame"; it is a hazy zone between power and wealth.

If you are wealthy enough and that tracking rubs you the wrong way, you are free to take public transportation like the rest of us. If Congress can do it, so can Musk.