Whenever we follow our own desires, we mess up. Even when we act with the best of intentions, we mess up. High-minded ideologies have failed time and time again. History is chock-full of examples.
Theres a very good reason why man-based morality consistently fails. We humans are imperfect. We cant possibly see all the consequences to our actions.
This Shmuz reminds us of the one and only way to make sure that your good intentions bring good results: by sticking with the tried and true morality of Torah.