> The money one spends circulates in the economy much longer and reaches more actors until it eventually falls back into original pocket. that's a total assump

> The money one spends circulates in the economy much longer and reaches more actors until it eventually falls back into original pocket. that's a total assumption being made. Who knows how the money from an office worker's commute gets dispersed. It's likely too difficult to track exactly. And it's irrelevant to the person how this dispersion happens or why. All they need to care about is that they've eliminated a source of inefficiency, and thus have extra money for either investment or different consumption.