Is it really that simple? If your main concern is net "good" to the world, don't you have to balance that against any "bad" generated by your job? Wall Street

Is it really that simple? If your main concern is net "good" to the world, don't you have to balance that against any "bad" generated by your job? Wall Street certainly is capable of damaging people's lives, and HFT does get some of the blame. Also, is net gain the only concern - if an assassin donates his profits to charity and in the process saves more lives than he takes, is does his net "good" make him moral?