There's more checks in place to assure that your government water is handled appropriately. A corporation will sell you anything and then declare bankruptcy to

There's more checks in place to assure that your government water is handled appropriately. A corporation will sell you anything and then declare bankruptcy to let the owners profit off the fraud. A government can inefficiently check over and over again that the supply it is providing is pure. A corporation is only beholding to its shareholders, where inefficiency is always a negative, regardless of its positive externalities.