I doubt it. Going faster burns more fuel. Even if you make up time, you are still burning a lot more fuel to do it and therefore your costs end up being a lot higher, even if you can get more flights in. You'd have to be breaking some rules of physics and aerodynamics to make this a thing in my opinion. Ultimately efficiency and revenue vs. operating costs is what businesses look for. Private jets can cater to what select people want. Airlines have to cater to the masses.