in choosing to change, sacrifice is inevitable. Ethics can be based on values, would you be sacrificing anything of great value to you? the catholic faith is based on the ethics of natural law everything has a purpose, to do anything or use anything for any other reason than its natural purpose is bad or not as good. humans have the ability to create/discover purpose, technology is getting ever more multi purposed (ie;mobile phones), so natural law has a hard time keeping up. i suppose you have to ask yourself what is my ultimate or most natural purpose in life? forgive me if my understanding is a little rusty.