If you can afford an 2025 S-class you can afford to fly for medium distance travel, you probably aren't slogging out a long commute because you live in one of those rich inner suburbs. You leave the house at reasonable hours and get home at reasonable hours, etc, etc.
There's all sorts of stuff that's just a proxy for generalized correlation with wealth and wealthy lifestyles.
This is probably also very much true on a per mile basis.