Why is using a different ethical principle for each situation faced so that the mroally correct thing will be what a person wants it to be according to that decision makers personal desires and pleasure or interests are concerned close amounting to the practice of ethical egoism? What is so wrong with being an Ethical Egoist? Why not have everyone on earth use this principle as their moral guide through life? What sort of world would that make? Why not use this principle as your moral guide through life?