Rand was probably wrong?

Objectivism (Ayn Rand) - Wikipedia, the free encyclopedia: "Rand's explanation of values presents the view that an individual's primary moral obligation is to achieve his own well-being - it is for his life, and his self-interest in it that an individual ought to adhere to a moral code. Egoism is a corollary of setting man's life as the moral standard. A corollary to Rand's endorsement of self-interest is her rejection of the ethical doctrine of altruism—which she defined in the sense of Auguste Comte's altruism (he coined the term), as a moral obligation to live for the sake of others."

Compte was more correct in his assumption than Rand, because doing good, i.e., like helping others, is beneficial to an individual by stimulating the reward centers in the brain. Apparently Rand called her ethics "Rational Egoism" which means that an action is rational if it maximizes one's self-interest. Thus it could mean helping others, if self-interest is explained as maximizing the feeling of reward. However, it does not seem like Rand meant this?