Explain The Arguments Against Utilitarianism

Utilitarianism is that the moral worth (or just plain worth really) of an action or decision is the sum of all the good and bad of all that are affected by the action. One good argument against utilitarianism is that we often can't agree to the evaluation of the good or the bad consequences of any given action. In any case in the case of the free market economy, some argue that the free market is the best - let everyone pursue the good as they see fit. the downside of that argument is that there are great disparities of wealth and poverty, the weak suffer, but arguably less than all the good the market has done. this argument against utilitarianism is summed famously by the seminal economist J Maynard Keynes - "In the long run we're all dead