Salaam Allaikum,

From a religious perspective, God has created rules for us so that we can be successful in our lives in this world and the next. As such, when we go against these rules, we're really hurting ourselves. At the same time, this type of disobedience and disregard for our Creator, who has given us everything and only wishes the best for us, is very disrespectful. It shows God that we don't care about what he says and we are willing to go against his commandments. As such, this type of behavior will cause him to be displeased with us...