Pah! Emotions are indicators, not drivers. Self control is admirable and noble (and a clear indication of civilization, culture and being human). Choice, exercised in full concious control, can be directed by emotions, but only in full understanding of the emotion and what it is indicating. Emotions should not be the sole driver of decisions, but they are very valuable and should not be avioided.
Choice is a sign of intelligence and a key differentiator between sentience and non-sentience. Shouldn't we aim to improve / increase this differentiation and strive for greater, more noble humanity. We are not simply animals fighting for survival against all other animals.