Utilitarianism is evil because it allows evil actions to be taken as long as that maximizes utility, thus justifying the unjustifiable. Utilitarianism is wrong because it is still evil to commit fraud even to save human lives. However utilitarianism is popular for people with power, because they can use it to justify their evil actions as for the greater good. Even if they are sincere, their actions are still evil; even if SBF succeeded instead of failing, and sincerely wanted to stop climate change, he would still and rightfully be a criminal.