Comment by dale_glass

There are many forms of utilitarianism, but I don't think any advocate only for considering the most immediate consequences. Like if you're considering murder because it'd be beneficial in the long run, surely you also have to consider the possible negatives as well, which rarely makes a good option.

But really, all moral systems have horrifying failures. If in utilitarianism you can inflict horrors for utility, then in deontology you can inflict an unlimited amount of it if you ever come to the conclusion that it's allowable.

Eg, any time a deontological system decides that foreigners/gays/jews/etc aren't truly people, then they get kicked out of the system completely. And then any amount of suffering they might feel as a result is literally irrelevant -- deontology doesn't even consider it at all.