Doing Good is not an Option, It is the Function through which we are to worship God, The one who Created us..
Doing Bad is just Missing the target and goal for which we are created for.
so whenever you do Good works( especially, Doing it for the one gave you this function for the purpose of His glory). you function the way you are created to function…
So are you Functioning the way you are created or for the purpose you are Created.
Now when it is comes to sin. It is missing the target(or Goal) and especially, sin is against God… because everytime you sin. You choose Evil(Darkness) instead of your Good and not the one who is light…