Senators probably don’t cross the threshold. You gotta have a lot of money and a lot of status with the airlines. Also likely not all airports will have/do this.

I also have a billionaire friend who only flies coach. Personally I think he’s a moron for doing so, but respect that he’s so cheap. You generally keep your wealth by being cheap, but realistically business versus coach won’t fundamentally change anything. It’s more the principal.