Money is fungible, but there are various government expenditures that generate positive returns, either in direct revenue (e.g. tax collection enforcement) or knock-off economic benefits (e.g. libraries) some proportion of your taxes go to these services where you are effectively getting more back than what you’ve paid for these services.
(Economically, governments should spend more on such services until the marginal returns are no longer positive, but tend not to for political reasons.)