This is so true. The point is that you don't need to fork out all your money to the child and pay for everything. The point is that you are still assisting in the financial upbringing of the child with the other parent, but not solely supporting the child. In these cases a court determines what the living expenses are supposed to be paid by the parent. It is not supposed to provide for a posh life either.
If there is something going awry and against justice, you should definitely speak to your lawyer and bring it to court. Every child needs to be provided for and not neglected completely by those who had any part at bringing him into the world.