You're absolutely correct.   But it is equally dangerous to the individual if they simply fail to acknowledge their feeling and deal with them.     I know, I've been there.    

When I am around people that don't acknowledge things lie worry, hatred, pain, suffering, lonliness. ect... the things that can't really throw a person out of balance can tip them into mental illness.   The  individual can suffer in pain, leading to various forms of 
self destruction, or, maybe the strike out at others, unable to accept and deal with their own emotions.

I can't think of many decision that don't include an emotional component.   If you are saying people go overboard toward the emotional side, that they forget rationality, or even demand personal needs be taken care of for them, when in fact the community has other needs, then yea, decision making can be controlled by emotions and that's not good either.

My intent was to say that the decision we make should have emotion and intellect balanced.