Not All Wolves Need Sheep's Clothing

So, according to Wikipedia - your thoughts on it's credibility as a source of truth aside - the saying "A Wolf in sheep's clothing" is an idiom of Biblical origin. It is used in common vernacular to describe a person who is pretending to be something contrary to their real character, (their real character being someone with whom contact is considered ill advised). 

I am not certain why being a wolf is such a bad thing. Being assertive and bold and even a little bitchy can do wonders for a person'a career. I know it has for mine. This does not mean that I am always this way - just that when the time is right there is nothing wrong with standing up to be heard and asking for the things (and respect) we deserve in the workplace and at home.
So, what's the point? 

The point is if you dress the part, you only have to work half as hard at being hear and taken seriously. People respect those that seem to respect themselves. If you dress like you give a shit about yourself - and your kids are dressed like you give a shit about them there is automatically a different response to you in the office and at home/out in the world in your personal life.

For a point of reference, look at the images of women below and answer the following questions:

1. Who looks like more of a bitch?
2. Who looks more knowledgeable?
3. Who do you feel you trust more (gut reaction)?
4. Who would you rather be seen at lunch with?
5. Whose children do you think look better cared for?
6. Whose husband is more handsome?
7. Would a haircut&dye, better fitted and more professional looking clothes and shoes, the right make-up and posture change your opinion of the second woman? (if you know the character the second one is playing, try and ignore that for a moment).

So, should women dress in a way that makes them seem "comfortable, approachable, innocent, and young - with no regard for professional attire simply because it makes them look more headstrong and self-sufficient?