You don’t really have a choice but to satisfy your own preferences.
Suppose you decide to stop satisfying your preferences. Well, you’ve just satisfied your preference to stop satisfying your preferences.
So the answer to the question is that it’s logically impossible not to. Sometimes your preferences will include helping others, and sometimes they wont. In either case, you’re satisfying your preference when you act on it.
You don’t really have a choice but to satisfy your own preferences.
Suppose you decide to stop satisfying your preferences. Well, you’ve just satisfied your preference to stop satisfying your preferences.
So the answer to the question is that it’s logically impossible not to. Sometimes your preferences will include helping others, and sometimes they wont. In either case, you’re satisfying your preference when you act on it.