Of course, you do realise that here you are choosing the less moral option. After all, if you are compelled to feel compassion in all cases and have no control over this, then effectively you are an automaton in this respect, and an automaton is incapable of truly ethical choices since it can only follow its programming.
To be truly ethical, one would have to have the ability to not give a rat's arse before making any decisions. If you choose to not seek this ability, you are choosing to avoid the possibility of becoming a truly ethical being.
Devious, treacherous, murderous, neanderthal, sub-human of the West.