While every single one of your points is correct, it won't make any difference. People habitually do what they're used to doing regardless of how unhelpful the behavior may be. Those who've spent their entire professional lives clawing and biting their way to a corner office (or indeed any kind of office) aren't giving up those perks and who cares if the cost is billions of tons of CO2 pumped into the air during totally unnecessary commutes, tired and stressed employees, and a slight fall in productivity? Besides, those airmiles won't earn themselves, and if no one is in the office then there's no reason to strap into that business-class seat. Hence the legion of CEOs now demanding their serfs return to their cubes like good little drones.