Why do you people consistently fail at this very, very simple concept?
In your example, you helped someone else's local economy. Ok fine. However the entirety of that money remained in that local economy.
If you travel to see Taylor Swift, you're giving some money to someone else's local economy and giving some money to an extremely wealthy person who then removes that money entirely from both your local economy and the local economy from which you travelled to. That is NOT a boon.
And money is politics.