Yes, I believe all of our emotions probably serve some evolutionary purpose. Does that mean they're useful in modern society? Not necessarily. Being anxious might have helped my ancestors prepare for unexpected famines. Being aggressive might have helped them lock down the resources they needed to survive. Do those emotions help me as an adult software engineer in Houston? Heck no. Anxiety and aggression just get in…
That's a very misguided view of things. Aggression will help you fight for higher wages for yourself more often than if you weren't as aggressive. Anxiety will drive you towards actions that will decrease your anxiety, and those actions will generally be useful for you and sometimes the people employing you. I think you're not really in touch and being honest with yourself if you don't think both aggression and anxie…
Sometimes aggression is constructive or useful in situations like negotiating. Sometimes it is counterproductive and considered harmful.
What I took away from the OP is that we cannot blindly act on our emotions - that having an intermediate, self-reflective and self-questioning step in how we act and think is vital in order to be happy and successful in the world in which we live.
And, of course, this includes questioning the self-questioning. Sometimes it's the wrong time to question, and it is the right time to act on unfettered emotion.
The question is, when? ;)