NeutralDrow said:
Performing acts for the benefit of others that have absolutely no positive effects for the performer isn't altruism, it's insanity.
The Objectivists you disparage simply know that it is not possible to live your life focused on other people because it doesn't work. If you spend 100% of your time doing things for other people, when are you going to eat and bathe and take care of yourself? Due to the nature of Objectivist epistemology, any prescribed activity that cannot be carried out in its pure form--cannot be adhered to 100%--is rejected as unprincipled and thus in conflict with man's primary means of survival. (Don't ask me to explain this--I'll just send you to read three or four books and listen to a dozen lectures. If you're interested, look it up yourself.)
However, this is not the way the term "altruism" is applied in the context where it is normally used. For instance, according to many philosophers (such as Kant), the ONLY type of moral action is one that is undertaken specifically for the purpose of HARMING yourself to benefit someone else. (And, also, according to Kant, it DOESN'T COUNT if you have ANY INTEREST AT ALL in benefiting that person or even in being moral!--in fact, you have to PREFER that they DIE and PREFER to be a SCUMBAG in order for your action to have moral standing.) This is altruism in its purest philosophical form--sacrifice for the sake of sacrifice, destruction for the purpose of destruction and not for any gain of any type. This is the philosophical dead-end of altruist ethics, the final consequence, the ultimate result.