It does not.
As I said earlier (post # 35085) Since they're paid with taxes, the very fact that there is a difference between the gross and net amounts of tax dollars given to them, doesn't mean city workers have paid taxes. On the contrary, they've simply been given less tax dollars as earnings, but the public purse is still in the red. For example, if we hire another hundred city workers at $100k gross and $80 net, well, the public purse isn't ahead by those $20k of extra "tax", but is in fact in the hole for the $80k a head.
True taxes are gained through the private sector or in rare cases in the public sector where value or productivity is increased over the cost of those inputs, such as IMO at the LCBO or in medicine. Another example would be where a public sector funded doctor (not a true public servant, but an entrepreneur paid by gov't) can help maintain or increase economic productivity (and tax funds for the CRA) by keeping private sector workers (i.e. inputs) healthy and productive.