Ok lets get some facts straight.
This money goes to Dublin. You get your application form from the County Council but it goes straight to Dublin with money enclosed. Not receipted or taken in by County Councils. The County Councils will take your form and money and post to Dublin for you if you want.
Dublin City Council does not receive all this money. I assume you mean that the money goes to central government? And if the truth is told, Dublin residents get less money per capita that rural councils thus it would be more correct to say that Dublin money goes to other councils.