It means the US government spends 10 times as much on killing others (military spending - 13%) than it does on essential infrastructure (transportation - ~2%)
I don't want to disagree with your general point (because I agree that our infrastructure is not great, and that the US glorifies the military in ways I find uncomfortable), but let's also remember that doing a good job at two wildly different things may not cost the same amount of money.
While I do think the US should be spending more on essential infrastructure, it is entirely likely that the US could end up doing an exemplary job at that, but still spend less money on it than on the military.
